260804920

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{10333}}^1$

素因数の和:10975

約数の個数: 32

約数和(自身を含む): 587797920

約数和(自身を除く): 326993000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 5048, 6310, 10333, 12620, 20666, 25240, 41332, 51665, 82664, 103330, 206660, 413320, 6520123, 13040246, 26080492, 32600615, 52160984, 65201230, 130402460, 260804920]

約数ペア:

[(1, 260804920), (2, 130402460), (4, 65201230), (5, 52160984), (8, 32600615), (10, 26080492), (20, 13040246), (40, 6520123), (631, 413320), (1262, 206660), (2524, 103330), (3155, 82664), (5048, 51665), (6310, 41332), (10333, 25240), (12620, 20666)]