15537640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5471}}^1$

素因数の和:5553

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 19920920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 5471, 10942, 21884, 27355, 43768, 54710, 109420, 218840, 388441, 776882, 1553764, 1942205, 3107528, 3884410, 7768820, 15537640]

約数ペア:

[(1, 15537640), (2, 7768820), (4, 3884410), (5, 3107528), (8, 1942205), (10, 1553764), (20, 776882), (40, 388441), (71, 218840), (142, 109420), (284, 54710), (355, 43768), (568, 27355), (710, 21884), (1420, 10942), (2840, 5471)]