28857575

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 36902400

約数和(自身を除く): 8044825

約数列:

[1, 5, 25, 61, 127, 149, 305, 635, 745, 1525, 3175, 3725, 7747, 9089, 18923, 38735, 45445, 94615, 193675, 227225, 473075, 1154303, 5771515, 28857575]

約数ペア:

[(1, 28857575), (5, 5771515), (25, 1154303), (61, 473075), (127, 227225), (149, 193675), (305, 94615), (635, 45445), (745, 38735), (1525, 18923), (3175, 9089), (3725, 7747)]