31212520

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{5237}}^1$

素因数の和:5397

約数の個数: 32

約数和(自身を含む): 70713000

約数和(自身を除く): 39500480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5237, 5960, 10474, 20948, 26185, 41896, 52370, 104740, 209480, 780313, 1560626, 3121252, 3901565, 6242504, 7803130, 15606260, 31212520]

約数ペア:

[(1, 31212520), (2, 15606260), (4, 7803130), (5, 6242504), (8, 3901565), (10, 3121252), (20, 1560626), (40, 780313), (149, 209480), (298, 104740), (596, 52370), (745, 41896), (1192, 26185), (1490, 20948), (2980, 10474), (5237, 5960)]