288538420

素因数分解:

$2^2\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{9689}}^1$

素因数の和:11187

約数の個数: 24

約数和(自身を含む): 606400200

約数和(自身を除く): 317861780

約数列:

[1, 2, 4, 5, 10, 20, 1489, 2978, 5956, 7445, 9689, 14890, 19378, 29780, 38756, 48445, 96890, 193780, 14426921, 28853842, 57707684, 72134605, 144269210, 288538420]

約数ペア:

[(1, 288538420), (2, 144269210), (4, 72134605), (5, 57707684), (10, 28853842), (20, 14426921), (1489, 193780), (2978, 96890), (5956, 48445), (7445, 38756), (9689, 29780), (14890, 19378)]