19962550

素因数分解:

$2^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{2543}}^1$

素因数の和:2712

約数の個数: 24

約数和(自身を含む): 37381536

約数和(自身を除く): 17418986

約数列:

[1, 2, 5, 10, 25, 50, 157, 314, 785, 1570, 2543, 3925, 5086, 7850, 12715, 25430, 63575, 127150, 399251, 798502, 1996255, 3992510, 9981275, 19962550]

約数ペア:

[(1, 19962550), (2, 9981275), (5, 3992510), (10, 1996255), (25, 798502), (50, 399251), (157, 127150), (314, 63575), (785, 25430), (1570, 12715), (2543, 7850), (3925, 5086)]