651620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1051}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 1413888

約数和(自身を除く): 762268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1051, 2102, 4204, 5255, 10510, 21020, 32581, 65162, 130324, 162905, 325810, 651620]

約数ペア:

[(1, 651620), (2, 325810), (4, 162905), (5, 130324), (10, 65162), (20, 32581), (31, 21020), (62, 10510), (124, 5255), (155, 4204), (310, 2102), (620, 1051)]