12420640

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:685

約数の個数: 48

約数和(自身を含む): 29597400

約数和(自身を除く): 17176760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 521, 596, 745, 1042, 1192, 1490, 2084, 2384, 2605, 2980, 4168, 4768, 5210, 5960, 8336, 10420, 11920, 16672, 20840, 23840, 41680, 77629, 83360, 155258, 310516, 388145, 621032, 776290, 1242064, 1552580, 2484128, 3105160, 6210320, 12420640]

約数ペア:

[(1, 12420640), (2, 6210320), (4, 3105160), (5, 2484128), (8, 1552580), (10, 1242064), (16, 776290), (20, 621032), (32, 388145), (40, 310516), (80, 155258), (149, 83360), (160, 77629), (298, 41680), (521, 23840), (596, 20840), (745, 16672), (1042, 11920), (1192, 10420), (1490, 8336), (2084, 5960), (2384, 5210), (2605, 4768), (2980, 4168)]