20138441375

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{877}}^1\times {\mathrm{1087}}^1$

素因数の和:2005

約数の個数: 48

約数和(自身を含む): 27270876672

約数和(自身を除く): 7132435297

約数列:

[1, 5, 13, 25, 65, 125, 169, 325, 845, 877, 1087, 1625, 4225, 4385, 5435, 11401, 14131, 21125, 21925, 27175, 57005, 70655, 109625, 135875, 148213, 183703, 285025, 353275, 741065, 918515, 953299, 1425125, 1766375, 3705325, 4592575, 4766495, 12392887, 18526625, 22962875, 23832475, 61964435, 119162375, 161107531, 309822175, 805537655, 1549110875, 4027688275, 20138441375]

約数ペア:

[(1, 20138441375), (5, 4027688275), (13, 1549110875), (25, 805537655), (65, 309822175), (125, 161107531), (169, 119162375), (325, 61964435), (845, 23832475), (877, 22962875), (1087, 18526625), (1625, 12392887), (4225, 4766495), (4385, 4592575), (5435, 3705325), (11401, 1766375), (14131, 1425125), (21125, 953299), (21925, 918515), (27175, 741065), (57005, 353275), (70655, 285025), (109625, 183703), (135875, 148213)]