13280225

素因数分解:

$5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 19740924

約数和(自身を除く): 6460699

約数列:

[1, 5, 7, 25, 35, 37, 49, 175, 185, 245, 259, 293, 925, 1225, 1295, 1465, 1813, 2051, 6475, 7325, 9065, 10255, 10841, 14357, 45325, 51275, 54205, 71785, 75887, 271025, 358925, 379435, 531209, 1897175, 2656045, 13280225]

約数ペア:

[(1, 13280225), (5, 2656045), (7, 1897175), (25, 531209), (35, 379435), (37, 358925), (49, 271025), (175, 75887), (185, 71785), (245, 54205), (259, 51275), (293, 45325), (925, 14357), (1225, 10841), (1295, 10255), (1465, 9065), (1813, 7325), (2051, 6475)]