19937710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1489}}^1$

素因数の和:1612

約数の個数: 32

約数和(自身を含む): 39049920

約数和(自身を除く): 19112210

約数列:

[1, 2, 5, 10, 13, 26, 65, 103, 130, 206, 515, 1030, 1339, 1489, 2678, 2978, 6695, 7445, 13390, 14890, 19357, 38714, 96785, 153367, 193570, 306734, 766835, 1533670, 1993771, 3987542, 9968855, 19937710]

約数ペア:

[(1, 19937710), (2, 9968855), (5, 3987542), (10, 1993771), (13, 1533670), (26, 766835), (65, 306734), (103, 193570), (130, 153367), (206, 96785), (515, 38714), (1030, 19357), (1339, 14890), (1489, 13390), (2678, 7445), (2978, 6695)]