65821520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^2\times {\mathrm{601}}^1$

素因数の和:688

約数の個数: 60

約数和(自身を含む): 157544604

約数和(自身を除く): 91723084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 601, 740, 1202, 1369, 1480, 2404, 2738, 2960, 3005, 4808, 5476, 6010, 6845, 9616, 10952, 12020, 13690, 21904, 22237, 24040, 27380, 44474, 48080, 54760, 88948, 109520, 111185, 177896, 222370, 355792, 444740, 822769, 889480, 1645538, 1778960, 3291076, 4113845, 6582152, 8227690, 13164304, 16455380, 32910760, 65821520]

約数ペア:

[(1, 65821520), (2, 32910760), (4, 16455380), (5, 13164304), (8, 8227690), (10, 6582152), (16, 4113845), (20, 3291076), (37, 1778960), (40, 1645538), (74, 889480), (80, 822769), (148, 444740), (185, 355792), (296, 222370), (370, 177896), (592, 111185), (601, 109520), (740, 88948), (1202, 54760), (1369, 48080), (1480, 44474), (2404, 27380), (2738, 24040), (2960, 22237), (3005, 21904), (4808, 13690), (5476, 12020), (6010, 10952), (6845, 9616)]