31212580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{222947}}^1$

素因数の和:222963

約数の個数: 24

約数和(自身を含む): 74910528

約数和(自身を除く): 43697948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 222947, 445894, 891788, 1114735, 1560629, 2229470, 3121258, 4458940, 6242516, 7803145, 15606290, 31212580]

約数ペア:

[(1, 31212580), (2, 15606290), (4, 7803145), (5, 6242516), (7, 4458940), (10, 3121258), (14, 2229470), (20, 1560629), (28, 1114735), (35, 891788), (70, 445894), (140, 222947)]