20210840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38867}}^1$

素因数の和:38891

約数の個数: 32

約数和(自身を含む): 48973680

約数和(自身を除く): 28762840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38867, 77734, 155468, 194335, 310936, 388670, 505271, 777340, 1010542, 1554680, 2021084, 2526355, 4042168, 5052710, 10105420, 20210840]

約数ペア:

[(1, 20210840), (2, 10105420), (4, 5052710), (5, 4042168), (8, 2526355), (10, 2021084), (13, 1554680), (20, 1010542), (26, 777340), (40, 505271), (52, 388670), (65, 310936), (104, 194335), (130, 155468), (260, 77734), (520, 38867)]