2056420

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{449}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 4347000

約数和(自身を除く): 2290580

約数列:

[1, 2, 4, 5, 10, 20, 229, 449, 458, 898, 916, 1145, 1796, 2245, 2290, 4490, 4580, 8980, 102821, 205642, 411284, 514105, 1028210, 2056420]

約数ペア:

[(1, 2056420), (2, 1028210), (4, 514105), (5, 411284), (10, 205642), (20, 102821), (229, 8980), (449, 4580), (458, 4490), (898, 2290), (916, 2245), (1145, 1796)]