31221320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60041}}^1$

素因数の和:60065

約数の個数: 32

約数和(自身を含む): 75652920

約数和(自身を除く): 44431600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60041, 120082, 240164, 300205, 480328, 600410, 780533, 1200820, 1561066, 2401640, 3122132, 3902665, 6244264, 7805330, 15610660, 31221320]

約数ペア:

[(1, 31221320), (2, 15610660), (4, 7805330), (5, 6244264), (8, 3902665), (10, 3122132), (13, 2401640), (20, 1561066), (26, 1200820), (40, 780533), (52, 600410), (65, 480328), (104, 300205), (130, 240164), (260, 120082), (520, 60041)]