2198620

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 4647888

約数和(自身を除く): 2449268

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 521, 844, 1042, 1055, 2084, 2110, 2605, 4220, 5210, 10420, 109931, 219862, 439724, 549655, 1099310, 2198620]

約数ペア:

[(1, 2198620), (2, 1099310), (4, 549655), (5, 439724), (10, 219862), (20, 109931), (211, 10420), (422, 5210), (521, 4220), (844, 2605), (1042, 2110), (1055, 2084)]