2780375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 32

約数和(自身を含む): 3931200

約数和(自身を除く): 1150825

約数列:

[1, 5, 13, 25, 29, 59, 65, 125, 145, 295, 325, 377, 725, 767, 1475, 1625, 1711, 1885, 3625, 3835, 7375, 8555, 9425, 19175, 22243, 42775, 47125, 95875, 111215, 213875, 556075, 2780375]

約数ペア:

[(1, 2780375), (5, 556075), (13, 213875), (25, 111215), (29, 95875), (59, 47125), (65, 42775), (125, 22243), (145, 19175), (295, 9425), (325, 8555), (377, 7375), (725, 3835), (767, 3625), (1475, 1885), (1625, 1711)]