2156875

素因数分解:

$5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:73

約数の個数: 40

約数和(自身を含む): 3373920

約数和(自身を除く): 1217045

約数列:

[1, 5, 7, 17, 25, 29, 35, 85, 119, 125, 145, 175, 203, 425, 493, 595, 625, 725, 875, 1015, 2125, 2465, 2975, 3451, 3625, 4375, 5075, 10625, 12325, 14875, 17255, 18125, 25375, 61625, 74375, 86275, 126875, 308125, 431375, 2156875]

約数ペア:

[(1, 2156875), (5, 431375), (7, 308125), (17, 126875), (25, 86275), (29, 74375), (35, 61625), (85, 25375), (119, 18125), (125, 17255), (145, 14875), (175, 12325), (203, 10625), (425, 5075), (493, 4375), (595, 3625), (625, 3451), (725, 2975), (875, 2465), (1015, 2125)]