20040180475

素因数分解:

$5^2\times 7^2\times {\mathrm{16359331}}^1$

素因数の和:16359355

約数の個数: 18

約数和(自身を含む): 28906939644

約数和(自身を除く): 8866759169

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16359331, 81796655, 114515317, 408983275, 572576585, 801607219, 2862882925, 4008036095, 20040180475]

約数ペア:

[(1, 20040180475), (5, 4008036095), (7, 2862882925), (25, 801607219), (35, 572576585), (49, 408983275), (175, 114515317), (245, 81796655), (1225, 16359331)]