54997960

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{2179}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 123998400

約数和(自身を除く): 69000440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2179, 2524, 3155, 4358, 5048, 6310, 8716, 10895, 12620, 17432, 21790, 25240, 43580, 87160, 1374949, 2749898, 5499796, 6874745, 10999592, 13749490, 27498980, 54997960]

約数ペア:

[(1, 54997960), (2, 27498980), (4, 13749490), (5, 10999592), (8, 6874745), (10, 5499796), (20, 2749898), (40, 1374949), (631, 87160), (1262, 43580), (2179, 25240), (2524, 21790), (3155, 17432), (4358, 12620), (5048, 10895), (6310, 8716)]