71223260

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8707}}^1$

素因数の和:9125

約数の個数: 24

約数和(自身を含む): 149951760

約数和(自身を除く): 78728500

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 8707, 17414, 34828, 43535, 87070, 174140, 3561163, 7122326, 14244652, 17805815, 35611630, 71223260]

約数ペア:

[(1, 71223260), (2, 35611630), (4, 17805815), (5, 14244652), (10, 7122326), (20, 3561163), (409, 174140), (818, 87070), (1636, 43535), (2045, 34828), (4090, 17414), (8180, 8707)]