31203080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10987}}^1$

素因数の和:11069

約数の個数: 32

約数和(自身を含む): 71202240

約数和(自身を除く): 39999160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10987, 21974, 43948, 54935, 87896, 109870, 219740, 439480, 780077, 1560154, 3120308, 3900385, 6240616, 7800770, 15601540, 31203080]

約数ペア:

[(1, 31203080), (2, 15601540), (4, 7800770), (5, 6240616), (8, 3900385), (10, 3120308), (20, 1560154), (40, 780077), (71, 439480), (142, 219740), (284, 109870), (355, 87896), (568, 54935), (710, 43948), (1420, 21974), (2840, 10987)]