80009420

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{22349}}^1$

素因数の和:22537

約数の個数: 24

約数和(自身を含む): 168966000

約数和(自身を除く): 88956580

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 22349, 44698, 89396, 111745, 223490, 446980, 4000471, 8000942, 16001884, 20002355, 40004710, 80009420]

約数ペア:

[(1, 80009420), (2, 40004710), (4, 20002355), (5, 16001884), (10, 8000942), (20, 4000471), (179, 446980), (358, 223490), (716, 111745), (895, 89396), (1790, 44698), (3580, 22349)]