2978825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 4026528

約数和(自身を除く): 1047703

約数列:

[1, 5, 17, 25, 43, 85, 163, 215, 425, 731, 815, 1075, 2771, 3655, 4075, 7009, 13855, 18275, 35045, 69275, 119153, 175225, 595765, 2978825]

約数ペア:

[(1, 2978825), (5, 595765), (17, 175225), (25, 119153), (43, 69275), (85, 35045), (163, 18275), (215, 13855), (425, 7009), (731, 4075), (815, 3655), (1075, 2771)]