18139960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14629}}^1$

素因数の和:14671

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 23994440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 14629, 29258, 58516, 73145, 117032, 146290, 292580, 453499, 585160, 906998, 1813996, 2267495, 3627992, 4534990, 9069980, 18139960]

約数ペア:

[(1, 18139960), (2, 9069980), (4, 4534990), (5, 3627992), (8, 2267495), (10, 1813996), (20, 906998), (31, 585160), (40, 453499), (62, 292580), (124, 146290), (155, 117032), (248, 73145), (310, 58516), (620, 29258), (1240, 14629)]