31080920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59771}}^1$

素因数の和:59795

約数の個数: 32

約数和(自身を含む): 75312720

約数和(自身を除く): 44231800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 59771, 119542, 239084, 298855, 478168, 597710, 777023, 1195420, 1554046, 2390840, 3108092, 3885115, 6216184, 7770230, 15540460, 31080920]

約数ペア:

[(1, 31080920), (2, 15540460), (4, 7770230), (5, 6216184), (8, 3885115), (10, 3108092), (13, 2390840), (20, 1554046), (26, 1195420), (40, 777023), (52, 597710), (65, 478168), (104, 298855), (130, 239084), (260, 119542), (520, 59771)]