16689320

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1871}}^1$

素因数の和:2105

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 21050200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 1871, 2230, 3742, 4460, 7484, 8920, 9355, 14968, 18710, 37420, 74840, 417233, 834466, 1668932, 2086165, 3337864, 4172330, 8344660, 16689320]

約数ペア:

[(1, 16689320), (2, 8344660), (4, 4172330), (5, 3337864), (8, 2086165), (10, 1668932), (20, 834466), (40, 417233), (223, 74840), (446, 37420), (892, 18710), (1115, 14968), (1784, 9355), (1871, 8920), (2230, 7484), (3742, 4460)]