2781475

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:175

約数の個数: 24

約数和(自身を含む): 3694208

約数和(自身を除く): 912733

約数列:

[1, 5, 25, 31, 37, 97, 155, 185, 485, 775, 925, 1147, 2425, 3007, 3589, 5735, 15035, 17945, 28675, 75175, 89725, 111259, 556295, 2781475]

約数ペア:

[(1, 2781475), (5, 556295), (25, 111259), (31, 89725), (37, 75175), (97, 28675), (155, 17945), (185, 15035), (485, 5735), (775, 3589), (925, 3007), (1147, 2425)]