31306120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9907}}^1$

素因数の和:9997

約数の個数: 32

約数和(自身を含む): 71337600

約数和(自身を除く): 40031480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 9907, 19814, 39628, 49535, 79256, 99070, 198140, 396280, 782653, 1565306, 3130612, 3913265, 6261224, 7826530, 15653060, 31306120]

約数ペア:

[(1, 31306120), (2, 15653060), (4, 7826530), (5, 6261224), (8, 3913265), (10, 3130612), (20, 1565306), (40, 782653), (79, 396280), (158, 198140), (316, 99070), (395, 79256), (632, 49535), (790, 39628), (1580, 19814), (3160, 9907)]