31221880

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1237}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 70417440

約数和(自身を除く): 39195560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1237, 1262, 2474, 2524, 3155, 4948, 5048, 6185, 6310, 9896, 12370, 12620, 24740, 25240, 49480, 780547, 1561094, 3122188, 3902735, 6244376, 7805470, 15610940, 31221880]

約数ペア:

[(1, 31221880), (2, 15610940), (4, 7805470), (5, 6244376), (8, 3902735), (10, 3122188), (20, 1561094), (40, 780547), (631, 49480), (1237, 25240), (1262, 24740), (2474, 12620), (2524, 12370), (3155, 9896), (4948, 6310), (5048, 6185)]