2389913125

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5231}}^1$

素因数の和:5311

約数の個数: 40

約数和(自身を含む): 3236264064

約数和(自身を除く): 846350939

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 425, 625, 731, 1075, 2125, 3655, 5231, 5375, 10625, 18275, 26155, 26875, 88927, 91375, 130775, 224933, 444635, 456875, 653875, 1124665, 2223175, 3269375, 3823861, 5623325, 11115875, 19119305, 28116625, 55579375, 95596525, 140583125, 477982625, 2389913125]

約数ペア:

[(1, 2389913125), (5, 477982625), (17, 140583125), (25, 95596525), (43, 55579375), (85, 28116625), (125, 19119305), (215, 11115875), (425, 5623325), (625, 3823861), (731, 3269375), (1075, 2223175), (2125, 1124665), (3655, 653875), (5231, 456875), (5375, 444635), (10625, 224933), (18275, 130775), (26155, 91375), (26875, 88927)]