20345225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{863}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 26998272

約数和(自身を除く): 6653047

約数列:

[1, 5, 23, 25, 41, 115, 205, 575, 863, 943, 1025, 4315, 4715, 19849, 21575, 23575, 35383, 99245, 176915, 496225, 813809, 884575, 4069045, 20345225]

約数ペア:

[(1, 20345225), (5, 4069045), (23, 884575), (25, 813809), (41, 496225), (115, 176915), (205, 99245), (575, 35383), (863, 23575), (943, 21575), (1025, 19849), (4315, 4715)]