31206580

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19751}}^1$

素因数の和:19839

約数の個数: 24

約数和(自身を含む): 66366720

約数和(自身を除く): 35160140

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19751, 39502, 79004, 98755, 197510, 395020, 1560329, 3120658, 6241316, 7801645, 15603290, 31206580]

約数ペア:

[(1, 31206580), (2, 15603290), (4, 7801645), (5, 6241316), (10, 3120658), (20, 1560329), (79, 395020), (158, 197510), (316, 98755), (395, 79004), (790, 39502), (1580, 19751)]