18459740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70999}}^1$

素因数の和:71021

約数の個数: 24

約数和(自身を含む): 41748000

約数和(自身を除く): 23288260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70999, 141998, 283996, 354995, 709990, 922987, 1419980, 1845974, 3691948, 4614935, 9229870, 18459740]

約数ペア:

[(1, 18459740), (2, 9229870), (4, 4614935), (5, 3691948), (10, 1845974), (13, 1419980), (20, 922987), (26, 709990), (52, 354995), (65, 283996), (130, 141998), (260, 70999)]