209216525

素因数分解:

$5^2\times 7^2\times {\mathrm{233}}^1\times {\mathrm{733}}^1$

素因数の和:990

約数の個数: 36

約数和(自身を含む): 303492852

約数和(自身を除く): 94276327

約数列:

[1, 5, 7, 25, 35, 49, 175, 233, 245, 733, 1165, 1225, 1631, 3665, 5131, 5825, 8155, 11417, 18325, 25655, 35917, 40775, 57085, 128275, 170789, 179585, 285425, 853945, 897925, 1195523, 4269725, 5977615, 8368661, 29888075, 41843305, 209216525]

約数ペア:

[(1, 209216525), (5, 41843305), (7, 29888075), (25, 8368661), (35, 5977615), (49, 4269725), (175, 1195523), (233, 897925), (245, 853945), (733, 285425), (1165, 179585), (1225, 170789), (1631, 128275), (3665, 57085), (5131, 40775), (5825, 35917), (8155, 25655), (11417, 18325)]