15251240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8867}}^1$

素因数の和:8921

約数の個数: 32

約数和(自身を含む): 35117280

約数和(自身を除く): 19866040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 8867, 17734, 35468, 44335, 70936, 88670, 177340, 354680, 381281, 762562, 1525124, 1906405, 3050248, 3812810, 7625620, 15251240]

約数ペア:

[(1, 15251240), (2, 7625620), (4, 3812810), (5, 3050248), (8, 1906405), (10, 1525124), (20, 762562), (40, 381281), (43, 354680), (86, 177340), (172, 88670), (215, 70936), (344, 44335), (430, 35468), (860, 17734), (1720, 8867)]