31690360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60943}}^1$

素因数の和:60967

約数の個数: 32

約数和(自身を含む): 76789440

約数和(自身を除く): 45099080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60943, 121886, 243772, 304715, 487544, 609430, 792259, 1218860, 1584518, 2437720, 3169036, 3961295, 6338072, 7922590, 15845180, 31690360]

約数ペア:

[(1, 31690360), (2, 15845180), (4, 7922590), (5, 6338072), (8, 3961295), (10, 3169036), (13, 2437720), (20, 1584518), (26, 1218860), (40, 792259), (52, 609430), (65, 487544), (104, 304715), (130, 243772), (260, 121886), (520, 60943)]