20018222640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1321}}^1\times {\mathrm{1619}}^1$

素因数の和:2972

約数の個数: 240

約数和(自身を含む): 72498797280

約数和(自身を除く): 52480574640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1321, 1560, 1619, 1872, 2340, 2642, 3120, 3238, 3963, 4680, 4857, 5284, 6476, 6605, 7926, 8095, 9360, 9714, 10568, 11889, 12952, 13210, 14571, 15852, 16190, 17173, 19428, 19815, 21047, 21136, 23778, 24285, 25904, 26420, 29142, 31704, 32380, 34346, 38856, 39630, 42094, 47556, 48570, 51519, 52840, 58284, 59445, 63141, 63408, 64760, 68692, 72855, 77712, 79260, 84188, 85865, 95112, 97140, 103038, 105235, 105680, 116568, 118890, 126282, 129520, 137384, 145710, 154557, 158520, 168376, 171730, 189423, 190224, 194280, 206076, 210470, 233136, 237780, 252564, 257595, 274768, 291420, 309114, 315705, 317040, 336752, 343460, 378846, 388560, 412152, 420940, 475560, 505128, 515190, 582840, 618228, 631410, 686920, 757692, 772785, 824304, 841880, 947115, 951120, 1010256, 1030380, 1165680, 1236456, 1262820, 1373840, 1515384, 1545570, 1683760, 1894230, 2060760, 2138699, 2472912, 2525640, 3030768, 3091140, 3788460, 4121520, 4277398, 5051280, 6182280, 6416097, 7576920, 8554796, 10693495, 12364560, 12832194, 15153840, 17109592, 19248291, 21386990, 25664388, 27803087, 32080485, 34219184, 38496582, 42773980, 51328776, 55606174, 64160970, 76993164, 83409261, 85547960, 96241455, 102657552, 111212348, 128321940, 139015435, 153986328, 166818522, 171095920, 192482910, 222424696, 250227783, 256643880, 278030870, 307972656, 333637044, 384965820, 417046305, 444849392, 500455566, 513287760, 556061740, 667274088, 769931640, 834092610, 1000911132, 1112123480, 1251138915, 1334548176, 1539863280, 1668185220, 2001822264, 2224246960, 2502277830, 3336370440, 4003644528, 5004555660, 6672740880, 10009111320, 20018222640]

約数ペア:

[(1, 20018222640), (2, 10009111320), (3, 6672740880), (4, 5004555660), (5, 4003644528), (6, 3336370440), (8, 2502277830), (9, 2224246960), (10, 2001822264), (12, 1668185220), (13, 1539863280), (15, 1334548176), (16, 1251138915), (18, 1112123480), (20, 1000911132), (24, 834092610), (26, 769931640), (30, 667274088), (36, 556061740), (39, 513287760), (40, 500455566), (45, 444849392), (48, 417046305), (52, 384965820), (60, 333637044), (65, 307972656), (72, 278030870), (78, 256643880), (80, 250227783), (90, 222424696), (104, 192482910), (117, 171095920), (120, 166818522), (130, 153986328), (144, 139015435), (156, 128321940), (180, 111212348), (195, 102657552), (208, 96241455), (234, 85547960), (240, 83409261), (260, 76993164), (312, 64160970), (360, 55606174), (390, 51328776), (468, 42773980), (520, 38496582), (585, 34219184), (624, 32080485), (720, 27803087), (780, 25664388), (936, 21386990), (1040, 19248291), (1170, 17109592), (1321, 15153840), (1560, 12832194), (1619, 12364560), (1872, 10693495), (2340, 8554796), (2642, 7576920), (3120, 6416097), (3238, 6182280), (3963, 5051280), (4680, 4277398), (4857, 4121520), (5284, 3788460), (6476, 3091140), (6605, 3030768), (7926, 2525640), (8095, 2472912), (9360, 2138699), (9714, 2060760), (10568, 1894230), (11889, 1683760), (12952, 1545570), (13210, 1515384), (14571, 1373840), (15852, 1262820), (16190, 1236456), (17173, 1165680), (19428, 1030380), (19815, 1010256), (21047, 951120), (21136, 947115), (23778, 841880), (24285, 824304), (25904, 772785), (26420, 757692), (29142, 686920), (31704, 631410), (32380, 618228), (34346, 582840), (38856, 515190), (39630, 505128), (42094, 475560), (47556, 420940), (48570, 412152), (51519, 388560), (52840, 378846), (58284, 343460), (59445, 336752), (63141, 317040), (63408, 315705), (64760, 309114), (68692, 291420), (72855, 274768), (77712, 257595), (79260, 252564), (84188, 237780), (85865, 233136), (95112, 210470), (97140, 206076), (103038, 194280), (105235, 190224), (105680, 189423), (116568, 171730), (118890, 168376), (126282, 158520), (129520, 154557), (137384, 145710)]