20161222640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19385791}}^1$

素因数の和:19385817

約数の個数: 40

約数和(自身を含む): 50480602368

約数和(自身を除く): 30319379728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19385791, 38771582, 77543164, 96928955, 155086328, 193857910, 252015283, 310172656, 387715820, 504030566, 775431640, 1008061132, 1260076415, 1550863280, 2016122264, 2520152830, 4032244528, 5040305660, 10080611320, 20161222640]

約数ペア:

[(1, 20161222640), (2, 10080611320), (4, 5040305660), (5, 4032244528), (8, 2520152830), (10, 2016122264), (13, 1550863280), (16, 1260076415), (20, 1008061132), (26, 775431640), (40, 504030566), (52, 387715820), (65, 310172656), (80, 252015283), (104, 193857910), (130, 155086328), (208, 96928955), (260, 77543164), (520, 38771582), (1040, 19385791)]