18705490

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^2$

素因数の和:378

約数の個数: 24

約数和(自身を含む): 34240140

約数和(自身を除く): 15534650

約数列:

[1, 2, 5, 10, 109, 131, 218, 262, 545, 655, 1090, 1310, 14279, 17161, 28558, 34322, 71395, 85805, 142790, 171610, 1870549, 3741098, 9352745, 18705490]

約数ペア:

[(1, 18705490), (2, 9352745), (5, 3741098), (10, 1870549), (109, 171610), (131, 142790), (218, 85805), (262, 71395), (545, 34322), (655, 28558), (1090, 17161), (1310, 14279)]