1245117520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{2731}}^1$

素因数の和:2924

約数の個数: 80

約数和(自身を含む): 2987933760

約数和(自身を除く): 1742816240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 139, 164, 205, 278, 328, 410, 556, 656, 695, 820, 1112, 1390, 1640, 2224, 2731, 2780, 3280, 5462, 5560, 5699, 10924, 11120, 11398, 13655, 21848, 22796, 27310, 28495, 43696, 45592, 54620, 56990, 91184, 109240, 111971, 113980, 218480, 223942, 227960, 379609, 447884, 455920, 559855, 759218, 895768, 1119710, 1518436, 1791536, 1898045, 2239420, 3036872, 3796090, 4478840, 6073744, 7592180, 8957680, 15184360, 15563969, 30368720, 31127938, 62255876, 77819845, 124511752, 155639690, 249023504, 311279380, 622558760, 1245117520]

約数ペア:

[(1, 1245117520), (2, 622558760), (4, 311279380), (5, 249023504), (8, 155639690), (10, 124511752), (16, 77819845), (20, 62255876), (40, 31127938), (41, 30368720), (80, 15563969), (82, 15184360), (139, 8957680), (164, 7592180), (205, 6073744), (278, 4478840), (328, 3796090), (410, 3036872), (556, 2239420), (656, 1898045), (695, 1791536), (820, 1518436), (1112, 1119710), (1390, 895768), (1640, 759218), (2224, 559855), (2731, 455920), (2780, 447884), (3280, 379609), (5462, 227960), (5560, 223942), (5699, 218480), (10924, 113980), (11120, 111971), (11398, 109240), (13655, 91184), (21848, 56990), (22796, 54620), (27310, 45592), (28495, 43696)]