18972925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 25221600

約数和(自身を除く): 6248675

約数列:

[1, 5, 19, 25, 59, 95, 295, 475, 677, 1121, 1475, 3385, 5605, 12863, 16925, 28025, 39943, 64315, 199715, 321575, 758917, 998575, 3794585, 18972925]

約数ペア:

[(1, 18972925), (5, 3794585), (19, 998575), (25, 758917), (59, 321575), (95, 199715), (295, 64315), (475, 39943), (677, 28025), (1121, 16925), (1475, 12863), (3385, 5605)]