66526640

素因数分解:

$2^4\times 5^1\times {\mathrm{831583}}^1$

素因数の和:831596

約数の個数: 20

約数和(自身を含む): 154674624

約数和(自身を除く): 88147984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 831583, 1663166, 3326332, 4157915, 6652664, 8315830, 13305328, 16631660, 33263320, 66526640]

約数ペア:

[(1, 66526640), (2, 33263320), (4, 16631660), (5, 13305328), (8, 8315830), (10, 6652664), (16, 4157915), (20, 3326332), (40, 1663166), (80, 831583)]