8638180

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{829}}^1$

素因数の和:1359

約数の個数: 24

約数和(自身を含む): 18196920

約数和(自身を除く): 9558740

約数列:

[1, 2, 4, 5, 10, 20, 521, 829, 1042, 1658, 2084, 2605, 3316, 4145, 5210, 8290, 10420, 16580, 431909, 863818, 1727636, 2159545, 4319090, 8638180]

約数ペア:

[(1, 8638180), (2, 4319090), (4, 2159545), (5, 1727636), (10, 863818), (20, 431909), (521, 16580), (829, 10420), (1042, 8290), (1658, 5210), (2084, 4145), (2605, 3316)]