78774040

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3121}}^1$

素因数の和:3763

約数の個数: 32

約数和(自身を含む): 177579360

約数和(自身を除く): 98805320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3121, 3155, 5048, 6242, 6310, 12484, 12620, 15605, 24968, 25240, 31210, 62420, 124840, 1969351, 3938702, 7877404, 9846755, 15754808, 19693510, 39387020, 78774040]

約数ペア:

[(1, 78774040), (2, 39387020), (4, 19693510), (5, 15754808), (8, 9846755), (10, 7877404), (20, 3938702), (40, 1969351), (631, 124840), (1262, 62420), (2524, 31210), (3121, 25240), (3155, 24968), (5048, 15605), (6242, 12620), (6310, 12484)]