81761825

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:785

約数の個数: 24

約数和(自身を含む): 104386176

約数和(自身を除く): 22624351

約数列:

[1, 5, 25, 71, 73, 355, 365, 631, 1775, 1825, 3155, 5183, 15775, 25915, 44801, 46063, 129575, 224005, 230315, 1120025, 1151575, 3270473, 16352365, 81761825]

約数ペア:

[(1, 81761825), (5, 16352365), (25, 3270473), (71, 1151575), (73, 1120025), (355, 230315), (365, 224005), (631, 129575), (1775, 46063), (1825, 44801), (3155, 25915), (5183, 15775)]