20761450

素因数分解:

$2^1\times 5^2\times {\mathrm{419}}^1\times {\mathrm{991}}^1$

素因数の和:1422

約数の個数: 24

約数和(自身を含む): 38747520

約数和(自身を除く): 17986070

約数列:

[1, 2, 5, 10, 25, 50, 419, 838, 991, 1982, 2095, 4190, 4955, 9910, 10475, 20950, 24775, 49550, 415229, 830458, 2076145, 4152290, 10380725, 20761450]

約数ペア:

[(1, 20761450), (2, 10380725), (5, 4152290), (10, 2076145), (25, 830458), (50, 415229), (419, 49550), (838, 24775), (991, 20950), (1982, 10475), (2095, 9910), (4190, 4955)]