2564159420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1\times {\mathrm{1499}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 5630310000

約数和(自身を除く): 3066150580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 961, 1499, 1780, 1922, 2759, 2998, 3844, 4805, 5518, 5996, 7495, 9610, 11036, 13795, 14990, 19220, 27590, 29980, 46469, 55180, 85529, 92938, 133411, 171058, 185876, 232345, 266822, 342116, 427645, 464690, 533644, 667055, 855290, 929380, 1334110, 1440539, 1710580, 2668220, 2881078, 4135741, 5762156, 7202695, 8271482, 14405390, 16542964, 20678705, 28810780, 41357410, 82714820, 128207971, 256415942, 512831884, 641039855, 1282079710, 2564159420]

約数ペア:

[(1, 2564159420), (2, 1282079710), (4, 641039855), (5, 512831884), (10, 256415942), (20, 128207971), (31, 82714820), (62, 41357410), (89, 28810780), (124, 20678705), (155, 16542964), (178, 14405390), (310, 8271482), (356, 7202695), (445, 5762156), (620, 4135741), (890, 2881078), (961, 2668220), (1499, 1710580), (1780, 1440539), (1922, 1334110), (2759, 929380), (2998, 855290), (3844, 667055), (4805, 533644), (5518, 464690), (5996, 427645), (7495, 342116), (9610, 266822), (11036, 232345), (13795, 185876), (14990, 171058), (19220, 133411), (27590, 92938), (29980, 85529), (46469, 55180)]