18409960

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4073}}^1$

素因数の和:4197

約数の個数: 32

約数和(自身を含む): 41799240

約数和(自身を除く): 23389280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4073, 4520, 8146, 16292, 20365, 32584, 40730, 81460, 162920, 460249, 920498, 1840996, 2301245, 3681992, 4602490, 9204980, 18409960]

約数ペア:

[(1, 18409960), (2, 9204980), (4, 4602490), (5, 3681992), (8, 2301245), (10, 1840996), (20, 920498), (40, 460249), (113, 162920), (226, 81460), (452, 40730), (565, 32584), (904, 20365), (1130, 16292), (2260, 8146), (4073, 4520)]