20784434840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1058

約数の個数: 256

約数和(自身を含む): 55196467200

約数和(自身を除く): 34412032360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 61, 62, 65, 92, 104, 115, 122, 124, 130, 155, 184, 230, 244, 248, 260, 299, 305, 310, 403, 460, 488, 520, 598, 610, 620, 713, 793, 806, 919, 920, 1196, 1220, 1240, 1403, 1426, 1495, 1586, 1612, 1838, 1891, 2015, 2392, 2440, 2806, 2852, 2990, 3172, 3224, 3565, 3676, 3782, 3965, 4030, 4595, 5612, 5704, 5980, 6344, 7015, 7130, 7352, 7564, 7930, 8060, 9190, 9269, 9455, 11224, 11947, 11960, 14030, 14260, 15128, 15860, 16120, 18239, 18380, 18538, 18910, 21137, 23894, 24583, 28060, 28489, 28520, 31720, 36478, 36760, 37076, 37820, 42274, 43493, 46345, 47788, 49166, 56059, 56120, 56978, 59735, 72956, 74152, 75640, 84548, 86986, 91195, 92690, 95576, 98332, 105685, 112118, 113956, 119470, 122915, 142445, 145912, 169096, 173972, 182390, 185380, 196664, 211370, 217465, 224236, 227912, 238940, 245830, 274781, 280295, 284890, 347944, 364780, 370357, 370760, 422740, 434930, 448472, 477880, 491660, 549562, 560590, 565409, 569780, 655247, 728767, 729560, 740714, 845480, 869860, 983320, 1099124, 1121180, 1130818, 1139560, 1289357, 1310494, 1373905, 1457534, 1481428, 1737829, 1739720, 1851785, 2198248, 2242360, 2261636, 2578714, 2620988, 2747810, 2827045, 2915068, 2962856, 3276235, 3475658, 3643835, 3703570, 4523272, 5157428, 5241976, 5495620, 5654090, 5830136, 6446785, 6552470, 6951316, 7287670, 7407140, 8518211, 8689145, 10314856, 10991240, 11308180, 12893570, 13104940, 13902632, 14575340, 14814280, 16761641, 17036422, 17378290, 22591777, 22616360, 25787140, 26209880, 29150680, 33523282, 34072844, 34756580, 39970067, 42591055, 45183554, 51574280, 67046564, 68145688, 69513160, 79940134, 83808205, 85182110, 90367108, 112958885, 134093128, 159880268, 167616410, 170364220, 180734216, 199850335, 225917770, 319760536, 335232820, 340728440, 399700670, 451835540, 519610871, 670465640, 799401340, 903671080, 1039221742, 1598802680, 2078443484, 2598054355, 4156886968, 5196108710, 10392217420, 20784434840]

約数ペア:

[(1, 20784434840), (2, 10392217420), (4, 5196108710), (5, 4156886968), (8, 2598054355), (10, 2078443484), (13, 1598802680), (20, 1039221742), (23, 903671080), (26, 799401340), (31, 670465640), (40, 519610871), (46, 451835540), (52, 399700670), (61, 340728440), (62, 335232820), (65, 319760536), (92, 225917770), (104, 199850335), (115, 180734216), (122, 170364220), (124, 167616410), (130, 159880268), (155, 134093128), (184, 112958885), (230, 90367108), (244, 85182110), (248, 83808205), (260, 79940134), (299, 69513160), (305, 68145688), (310, 67046564), (403, 51574280), (460, 45183554), (488, 42591055), (520, 39970067), (598, 34756580), (610, 34072844), (620, 33523282), (713, 29150680), (793, 26209880), (806, 25787140), (919, 22616360), (920, 22591777), (1196, 17378290), (1220, 17036422), (1240, 16761641), (1403, 14814280), (1426, 14575340), (1495, 13902632), (1586, 13104940), (1612, 12893570), (1838, 11308180), (1891, 10991240), (2015, 10314856), (2392, 8689145), (2440, 8518211), (2806, 7407140), (2852, 7287670), (2990, 6951316), (3172, 6552470), (3224, 6446785), (3565, 5830136), (3676, 5654090), (3782, 5495620), (3965, 5241976), (4030, 5157428), (4595, 4523272), (5612, 3703570), (5704, 3643835), (5980, 3475658), (6344, 3276235), (7015, 2962856), (7130, 2915068), (7352, 2827045), (7564, 2747810), (7930, 2620988), (8060, 2578714), (9190, 2261636), (9269, 2242360), (9455, 2198248), (11224, 1851785), (11947, 1739720), (11960, 1737829), (14030, 1481428), (14260, 1457534), (15128, 1373905), (15860, 1310494), (16120, 1289357), (18239, 1139560), (18380, 1130818), (18538, 1121180), (18910, 1099124), (21137, 983320), (23894, 869860), (24583, 845480), (28060, 740714), (28489, 729560), (28520, 728767), (31720, 655247), (36478, 569780), (36760, 565409), (37076, 560590), (37820, 549562), (42274, 491660), (43493, 477880), (46345, 448472), (47788, 434930), (49166, 422740), (56059, 370760), (56120, 370357), (56978, 364780), (59735, 347944), (72956, 284890), (74152, 280295), (75640, 274781), (84548, 245830), (86986, 238940), (91195, 227912), (92690, 224236), (95576, 217465), (98332, 211370), (105685, 196664), (112118, 185380), (113956, 182390), (119470, 173972), (122915, 169096), (142445, 145912)]