19780045

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{3529}}^1$

素因数の和:3612

約数の個数: 16

約数和(自身を含む): 25416000

約数和(自身を除く): 5635955

約数列:

[1, 5, 19, 59, 95, 295, 1121, 3529, 5605, 17645, 67051, 208211, 335255, 1041055, 3956009, 19780045]

約数ペア:

[(1, 19780045), (5, 3956009), (19, 1041055), (59, 335255), (95, 208211), (295, 67051), (1121, 17645), (3529, 5605)]