20750005

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2269}}^1$

素因数の和:2364

約数の個数: 16

約数和(自身を含む): 26150400

約数和(自身を除く): 5400395

約数列:

[1, 5, 31, 59, 155, 295, 1829, 2269, 9145, 11345, 70339, 133871, 351695, 669355, 4150001, 20750005]

約数ペア:

[(1, 20750005), (5, 4150001), (31, 669355), (59, 351695), (155, 133871), (295, 70339), (1829, 11345), (2269, 9145)]