220172875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{863}}^1$

素因数の和:1048

約数の個数: 32

約数和(自身を含む): 298142208

約数和(自身を除く): 77969333

約数列:

[1, 5, 13, 25, 65, 125, 157, 325, 785, 863, 1625, 2041, 3925, 4315, 10205, 11219, 19625, 21575, 51025, 56095, 107875, 135491, 255125, 280475, 677455, 1402375, 1761383, 3387275, 8806915, 16936375, 44034575, 220172875]

約数ペア:

[(1, 220172875), (5, 44034575), (13, 16936375), (25, 8806915), (65, 3387275), (125, 1761383), (157, 1402375), (325, 677455), (785, 280475), (863, 255125), (1625, 135491), (2041, 107875), (3925, 56095), (4315, 51025), (10205, 21575), (11219, 19625)]