80845960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155473}}^1$

素因数の和:155497

約数の個数: 32

約数和(自身を含む): 195897240

約数和(自身を除く): 115051280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155473, 310946, 621892, 777365, 1243784, 1554730, 2021149, 3109460, 4042298, 6218920, 8084596, 10105745, 16169192, 20211490, 40422980, 80845960]

約数ペア:

[(1, 80845960), (2, 40422980), (4, 20211490), (5, 16169192), (8, 10105745), (10, 8084596), (13, 6218920), (20, 4042298), (26, 3109460), (40, 2021149), (52, 1554730), (65, 1243784), (104, 777365), (130, 621892), (260, 310946), (520, 155473)]