16361875

素因数分解:

$5^4\times {\mathrm{47}}^1\times {\mathrm{557}}^1$

素因数の和:624

約数の個数: 20

約数和(自身を含む): 20918304

約数和(自身を除く): 4556429

約数列:

[1, 5, 25, 47, 125, 235, 557, 625, 1175, 2785, 5875, 13925, 26179, 29375, 69625, 130895, 348125, 654475, 3272375, 16361875]

約数ペア:

[(1, 16361875), (5, 3272375), (25, 654475), (47, 348125), (125, 130895), (235, 69625), (557, 29375), (625, 26179), (1175, 13925), (2785, 5875)]