259360240

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 619380000

約数和(自身を除く): 360019760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 89, 146, 178, 292, 356, 365, 445, 499, 584, 712, 730, 890, 998, 1168, 1424, 1460, 1780, 1996, 2495, 2920, 3560, 3992, 4990, 5840, 6497, 7120, 7984, 9980, 12994, 19960, 25988, 32485, 36427, 39920, 44411, 51976, 64970, 72854, 88822, 103952, 129940, 145708, 177644, 182135, 222055, 259880, 291416, 355288, 364270, 444110, 519760, 582832, 710576, 728540, 888220, 1457080, 1776440, 2914160, 3242003, 3552880, 6484006, 12968012, 16210015, 25936024, 32420030, 51872048, 64840060, 129680120, 259360240]

約数ペア:

[(1, 259360240), (2, 129680120), (4, 64840060), (5, 51872048), (8, 32420030), (10, 25936024), (16, 16210015), (20, 12968012), (40, 6484006), (73, 3552880), (80, 3242003), (89, 2914160), (146, 1776440), (178, 1457080), (292, 888220), (356, 728540), (365, 710576), (445, 582832), (499, 519760), (584, 444110), (712, 364270), (730, 355288), (890, 291416), (998, 259880), (1168, 222055), (1424, 182135), (1460, 177644), (1780, 145708), (1996, 129940), (2495, 103952), (2920, 88822), (3560, 72854), (3992, 64970), (4990, 51976), (5840, 44411), (6497, 39920), (7120, 36427), (7984, 32485), (9980, 25988), (12994, 19960)]