16851875

素因数分解:

$5^4\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:536

約数の個数: 20

約数和(自身を含む): 21461880

約数和(自身を除く): 4610005

約数列:

[1, 5, 25, 59, 125, 295, 457, 625, 1475, 2285, 7375, 11425, 26963, 36875, 57125, 134815, 285625, 674075, 3370375, 16851875]

約数ペア:

[(1, 16851875), (5, 3370375), (25, 674075), (59, 285625), (125, 134815), (295, 57125), (457, 36875), (625, 26963), (1475, 11425), (2285, 7375)]