78821740

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{5333}}^1$

素因数の和:6081

約数の個数: 24

約数和(自身を含む): 165780720

約数和(自身を除く): 86958980

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 5333, 7390, 10666, 14780, 21332, 26665, 53330, 106660, 3941087, 7882174, 15764348, 19705435, 39410870, 78821740]

約数ペア:

[(1, 78821740), (2, 39410870), (4, 19705435), (5, 15764348), (10, 7882174), (20, 3941087), (739, 106660), (1478, 53330), (2956, 26665), (3695, 21332), (5333, 14780), (7390, 10666)]