20718448920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{25889}}^1$

素因数の和:25944

約数の個数: 320

約数和(自身を含む): 78943788000

約数和(自身を除く): 58225339080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 27, 30, 36, 38, 39, 40, 45, 52, 54, 57, 60, 65, 72, 76, 78, 81, 90, 95, 104, 108, 114, 117, 120, 130, 135, 152, 156, 162, 171, 180, 190, 195, 216, 228, 234, 247, 260, 270, 285, 312, 324, 342, 351, 360, 380, 390, 405, 456, 468, 494, 513, 520, 540, 570, 585, 648, 684, 702, 741, 760, 780, 810, 855, 936, 988, 1026, 1053, 1080, 1140, 1170, 1235, 1368, 1404, 1482, 1539, 1560, 1620, 1710, 1755, 1976, 2052, 2106, 2223, 2280, 2340, 2470, 2565, 2808, 2964, 3078, 3240, 3420, 3510, 3705, 4104, 4212, 4446, 4680, 4940, 5130, 5265, 5928, 6156, 6669, 6840, 7020, 7410, 7695, 8424, 8892, 9880, 10260, 10530, 11115, 12312, 13338, 14040, 14820, 15390, 17784, 20007, 20520, 21060, 22230, 25889, 26676, 29640, 30780, 33345, 40014, 42120, 44460, 51778, 53352, 61560, 66690, 77667, 80028, 88920, 100035, 103556, 129445, 133380, 155334, 160056, 200070, 207112, 233001, 258890, 266760, 310668, 336557, 388335, 400140, 466002, 491891, 517780, 621336, 673114, 699003, 776670, 800280, 932004, 983782, 1009671, 1035560, 1165005, 1346228, 1398006, 1475673, 1553340, 1682785, 1864008, 1967564, 2019342, 2097009, 2330010, 2459455, 2692456, 2796012, 2951346, 3029013, 3106680, 3365570, 3495015, 3935128, 4038684, 4194018, 4427019, 4660020, 4918910, 5048355, 5592024, 5902692, 6058026, 6394583, 6731140, 6990030, 7378365, 8077368, 8388036, 8854038, 9087039, 9320040, 9837820, 10096710, 10485045, 11805384, 12116052, 12789166, 13281057, 13462280, 13980060, 14756730, 15145065, 16776072, 17708076, 18174078, 19183749, 19675640, 20193420, 20970090, 22135095, 24232104, 25578332, 26562114, 27261117, 27960120, 29513460, 30290130, 31972915, 35416152, 36348156, 38367498, 39843171, 40386840, 41940180, 44270190, 45435195, 51156664, 53124228, 54522234, 57551247, 59026920, 60580260, 63945830, 66405285, 72696312, 76734996, 79686342, 83880360, 88540380, 90870390, 95918745, 106248456, 109044468, 115102494, 121160520, 127891660, 132810570, 136305585, 153469992, 159372684, 172653741, 177080760, 181740780, 191837490, 199215855, 218088936, 230204988, 255783320, 265621140, 272611170, 287756235, 318745368, 345307482, 363481560, 383674980, 398431710, 460409976, 517961223, 531242280, 545222340, 575512470, 690614964, 767349960, 796863420, 863268705, 1035922446, 1090444680, 1151024940, 1381229928, 1593726840, 1726537410, 2071844892, 2302049880, 2589806115, 3453074820, 4143689784, 5179612230, 6906149640, 10359224460, 20718448920]

約数ペア:

[(1, 20718448920), (2, 10359224460), (3, 6906149640), (4, 5179612230), (5, 4143689784), (6, 3453074820), (8, 2589806115), (9, 2302049880), (10, 2071844892), (12, 1726537410), (13, 1593726840), (15, 1381229928), (18, 1151024940), (19, 1090444680), (20, 1035922446), (24, 863268705), (26, 796863420), (27, 767349960), (30, 690614964), (36, 575512470), (38, 545222340), (39, 531242280), (40, 517961223), (45, 460409976), (52, 398431710), (54, 383674980), (57, 363481560), (60, 345307482), (65, 318745368), (72, 287756235), (76, 272611170), (78, 265621140), (81, 255783320), (90, 230204988), (95, 218088936), (104, 199215855), (108, 191837490), (114, 181740780), (117, 177080760), (120, 172653741), (130, 159372684), (135, 153469992), (152, 136305585), (156, 132810570), (162, 127891660), (171, 121160520), (180, 115102494), (190, 109044468), (195, 106248456), (216, 95918745), (228, 90870390), (234, 88540380), (247, 83880360), (260, 79686342), (270, 76734996), (285, 72696312), (312, 66405285), (324, 63945830), (342, 60580260), (351, 59026920), (360, 57551247), (380, 54522234), (390, 53124228), (405, 51156664), (456, 45435195), (468, 44270190), (494, 41940180), (513, 40386840), (520, 39843171), (540, 38367498), (570, 36348156), (585, 35416152), (648, 31972915), (684, 30290130), (702, 29513460), (741, 27960120), (760, 27261117), (780, 26562114), (810, 25578332), (855, 24232104), (936, 22135095), (988, 20970090), (1026, 20193420), (1053, 19675640), (1080, 19183749), (1140, 18174078), (1170, 17708076), (1235, 16776072), (1368, 15145065), (1404, 14756730), (1482, 13980060), (1539, 13462280), (1560, 13281057), (1620, 12789166), (1710, 12116052), (1755, 11805384), (1976, 10485045), (2052, 10096710), (2106, 9837820), (2223, 9320040), (2280, 9087039), (2340, 8854038), (2470, 8388036), (2565, 8077368), (2808, 7378365), (2964, 6990030), (3078, 6731140), (3240, 6394583), (3420, 6058026), (3510, 5902692), (3705, 5592024), (4104, 5048355), (4212, 4918910), (4446, 4660020), (4680, 4427019), (4940, 4194018), (5130, 4038684), (5265, 3935128), (5928, 3495015), (6156, 3365570), (6669, 3106680), (6840, 3029013), (7020, 2951346), (7410, 2796012), (7695, 2692456), (8424, 2459455), (8892, 2330010), (9880, 2097009), (10260, 2019342), (10530, 1967564), (11115, 1864008), (12312, 1682785), (13338, 1553340), (14040, 1475673), (14820, 1398006), (15390, 1346228), (17784, 1165005), (20007, 1035560), (20520, 1009671), (21060, 983782), (22230, 932004), (25889, 800280), (26676, 776670), (29640, 699003), (30780, 673114), (33345, 621336), (40014, 517780), (42120, 491891), (44460, 466002), (51778, 400140), (53352, 388335), (61560, 336557), (66690, 310668), (77667, 266760), (80028, 258890), (88920, 233001), (100035, 207112), (103556, 200070), (129445, 160056), (133380, 155334)]