20980430

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4273}}^1$

素因数の和:4771

約数の個数: 16

約数和(自身を含む): 37850544

約数和(自身を除く): 16870114

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4273, 4910, 8546, 21365, 42730, 2098043, 4196086, 10490215, 20980430]

約数ペア:

[(1, 20980430), (2, 10490215), (5, 4196086), (10, 2098043), (491, 42730), (982, 21365), (2455, 8546), (4273, 4910)]