81850420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{36217}}^1$

素因数の和:36339

約数の個数: 24

約数和(自身を含む): 173411784

約数和(自身を除く): 91561364

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 36217, 72434, 144868, 181085, 362170, 724340, 4092521, 8185042, 16370084, 20462605, 40925210, 81850420]

約数ペア:

[(1, 81850420), (2, 40925210), (4, 20462605), (5, 16370084), (10, 8185042), (20, 4092521), (113, 724340), (226, 362170), (452, 181085), (565, 144868), (1130, 72434), (2260, 36217)]