16931920

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1873}}^1$

素因数の和:1999

約数の個数: 40

約数和(自身を含む): 39736296

約数和(自身を除く): 22804376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 1873, 2260, 3746, 4520, 7492, 9040, 9365, 14984, 18730, 29968, 37460, 74920, 149840, 211649, 423298, 846596, 1058245, 1693192, 2116490, 3386384, 4232980, 8465960, 16931920]

約数ペア:

[(1, 16931920), (2, 8465960), (4, 4232980), (5, 3386384), (8, 2116490), (10, 1693192), (16, 1058245), (20, 846596), (40, 423298), (80, 211649), (113, 149840), (226, 74920), (452, 37460), (565, 29968), (904, 18730), (1130, 14984), (1808, 9365), (1873, 9040), (2260, 7492), (3746, 4520)]