16913840

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1871}}^1$

素因数の和:1997

約数の個数: 40

約数和(自身を含む): 39693888

約数和(自身を除く): 22780048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 1871, 2260, 3742, 4520, 7484, 9040, 9355, 14968, 18710, 29936, 37420, 74840, 149680, 211423, 422846, 845692, 1057115, 1691384, 2114230, 3382768, 4228460, 8456920, 16913840]

約数ペア:

[(1, 16913840), (2, 8456920), (4, 4228460), (5, 3382768), (8, 2114230), (10, 1691384), (16, 1057115), (20, 845692), (40, 422846), (80, 211423), (113, 149680), (226, 74840), (452, 37420), (565, 29936), (904, 18710), (1130, 14968), (1808, 9355), (1871, 9040), (2260, 7484), (3742, 4520)]