20265215360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{773}}^1$

素因数の和:965

約数の個数: 256

約数和(自身を含む): 54909912960

約数和(自身を除く): 34644697600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 137, 160, 184, 208, 230, 260, 274, 299, 320, 368, 416, 460, 520, 548, 598, 640, 685, 736, 773, 832, 920, 1040, 1096, 1196, 1370, 1472, 1495, 1546, 1664, 1781, 1840, 2080, 2192, 2392, 2740, 2944, 2990, 3092, 3151, 3562, 3680, 3865, 4160, 4384, 4784, 5480, 5980, 6184, 6302, 7124, 7360, 7730, 8320, 8768, 8905, 9568, 10049, 10960, 11960, 12368, 12604, 14248, 14720, 15460, 15755, 17536, 17779, 17810, 19136, 20098, 21920, 23920, 24736, 25208, 28496, 30920, 31510, 35558, 35620, 38272, 40196, 40963, 43840, 47840, 49472, 50245, 50416, 56992, 61840, 63020, 71116, 71240, 80392, 81926, 87680, 88895, 95680, 98944, 100490, 100832, 105901, 113984, 123680, 126040, 142232, 142480, 160784, 163852, 177790, 191360, 200980, 201664, 204815, 211802, 227968, 231127, 247360, 252080, 284464, 284960, 321568, 327704, 355580, 401960, 403328, 409630, 423604, 462254, 494720, 504160, 529505, 568928, 569920, 643136, 655408, 711160, 803920, 819260, 847208, 924508, 1008320, 1059010, 1137856, 1139840, 1155635, 1286272, 1310816, 1376713, 1422320, 1607840, 1638520, 1694416, 1849016, 2016640, 2118020, 2275712, 2311270, 2435723, 2621632, 2753426, 2844640, 3215680, 3277040, 3388832, 3698032, 4236040, 4622540, 4871446, 5243264, 5506852, 5689280, 6431360, 6554080, 6777664, 6883565, 7396064, 8472080, 9245080, 9742892, 11013704, 11378560, 12178615, 13108160, 13555328, 13767130, 14792128, 16944160, 18490160, 19485784, 22027408, 24357230, 26216320, 27534260, 29584256, 31664399, 33888320, 36980320, 38971568, 44054816, 48714460, 55068520, 63328798, 67776640, 73960640, 77943136, 88109632, 97428920, 110137040, 126657596, 147921280, 155886272, 158321995, 176219264, 194857840, 220274080, 253315192, 311772544, 316643990, 389715680, 440548160, 506630384, 633287980, 779431360, 881096320, 1013260768, 1266575960, 1558862720, 2026521536, 2533151920, 4053043072, 5066303840, 10132607680, 20265215360]

約数ペア:

[(1, 20265215360), (2, 10132607680), (4, 5066303840), (5, 4053043072), (8, 2533151920), (10, 2026521536), (13, 1558862720), (16, 1266575960), (20, 1013260768), (23, 881096320), (26, 779431360), (32, 633287980), (40, 506630384), (46, 440548160), (52, 389715680), (64, 316643990), (65, 311772544), (80, 253315192), (92, 220274080), (104, 194857840), (115, 176219264), (128, 158321995), (130, 155886272), (137, 147921280), (160, 126657596), (184, 110137040), (208, 97428920), (230, 88109632), (260, 77943136), (274, 73960640), (299, 67776640), (320, 63328798), (368, 55068520), (416, 48714460), (460, 44054816), (520, 38971568), (548, 36980320), (598, 33888320), (640, 31664399), (685, 29584256), (736, 27534260), (773, 26216320), (832, 24357230), (920, 22027408), (1040, 19485784), (1096, 18490160), (1196, 16944160), (1370, 14792128), (1472, 13767130), (1495, 13555328), (1546, 13108160), (1664, 12178615), (1781, 11378560), (1840, 11013704), (2080, 9742892), (2192, 9245080), (2392, 8472080), (2740, 7396064), (2944, 6883565), (2990, 6777664), (3092, 6554080), (3151, 6431360), (3562, 5689280), (3680, 5506852), (3865, 5243264), (4160, 4871446), (4384, 4622540), (4784, 4236040), (5480, 3698032), (5980, 3388832), (6184, 3277040), (6302, 3215680), (7124, 2844640), (7360, 2753426), (7730, 2621632), (8320, 2435723), (8768, 2311270), (8905, 2275712), (9568, 2118020), (10049, 2016640), (10960, 1849016), (11960, 1694416), (12368, 1638520), (12604, 1607840), (14248, 1422320), (14720, 1376713), (15460, 1310816), (15755, 1286272), (17536, 1155635), (17779, 1139840), (17810, 1137856), (19136, 1059010), (20098, 1008320), (21920, 924508), (23920, 847208), (24736, 819260), (25208, 803920), (28496, 711160), (30920, 655408), (31510, 643136), (35558, 569920), (35620, 568928), (38272, 529505), (40196, 504160), (40963, 494720), (43840, 462254), (47840, 423604), (49472, 409630), (50245, 403328), (50416, 401960), (56992, 355580), (61840, 327704), (63020, 321568), (71116, 284960), (71240, 284464), (80392, 252080), (81926, 247360), (87680, 231127), (88895, 227968), (95680, 211802), (98944, 204815), (100490, 201664), (100832, 200980), (105901, 191360), (113984, 177790), (123680, 163852), (126040, 160784), (142232, 142480)]