20498601935

素因数分解:

$5^1\times 7^2\times {\mathrm{1277}}^1\times {\mathrm{65519}}^1$

素因数の和:66815

約数の個数: 24

約数和(自身を含む): 28637219520

約数和(自身を除く): 8138617585

約数列:

[1, 5, 7, 35, 49, 245, 1277, 6385, 8939, 44695, 62573, 65519, 312865, 327595, 458633, 2293165, 3210431, 16052155, 83667763, 418338815, 585674341, 2928371705, 4099720387, 20498601935]

約数ペア:

[(1, 20498601935), (5, 4099720387), (7, 2928371705), (35, 585674341), (49, 418338815), (245, 83667763), (1277, 16052155), (6385, 3210431), (8939, 2293165), (44695, 458633), (62573, 327595), (65519, 312865)]