18899960

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5981}}^1$

素因数の和:6071

約数の個数: 32

約数和(自身を含む): 43070400

約数和(自身を除く): 24170440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 5981, 11962, 23924, 29905, 47848, 59810, 119620, 239240, 472499, 944998, 1889996, 2362495, 3779992, 4724990, 9449980, 18899960]

約数ペア:

[(1, 18899960), (2, 9449980), (4, 4724990), (5, 3779992), (8, 2362495), (10, 1889996), (20, 944998), (40, 472499), (79, 239240), (158, 119620), (316, 59810), (395, 47848), (632, 29905), (790, 23924), (1580, 11962), (3160, 5981)]