18620080

素因数分解:

$2^4\times 5^1\times {\mathrm{232751}}^1$

素因数の和:232764

約数の個数: 20

約数和(自身を含む): 43291872

約数和(自身を除く): 24671792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 232751, 465502, 931004, 1163755, 1862008, 2327510, 3724016, 4655020, 9310040, 18620080]

約数ペア:

[(1, 18620080), (2, 9310040), (4, 4655020), (5, 3724016), (8, 2327510), (10, 1862008), (16, 1163755), (20, 931004), (40, 465502), (80, 232751)]