20996912180

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{3171739}}^1$

素因数の和:3172079

約数の個数: 24

約数和(自身を含む): 44226742560

約数和(自身を除く): 23229830380

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 3171739, 6343478, 12686956, 15858695, 31717390, 63434780, 1049845609, 2099691218, 4199382436, 5249228045, 10498456090, 20996912180]

約数ペア:

[(1, 20996912180), (2, 10498456090), (4, 5249228045), (5, 4199382436), (10, 2099691218), (20, 1049845609), (331, 63434780), (662, 31717390), (1324, 15858695), (1655, 12686956), (3310, 6343478), (6620, 3171739)]