9998575

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 12963456

約数和(自身を除く): 2964881

約数列:

[1, 5, 25, 43, 71, 131, 215, 355, 655, 1075, 1775, 3053, 3275, 5633, 9301, 15265, 28165, 46505, 76325, 140825, 232525, 399943, 1999715, 9998575]

約数ペア:

[(1, 9998575), (5, 1999715), (25, 399943), (43, 232525), (71, 140825), (131, 76325), (215, 46505), (355, 28165), (655, 15265), (1075, 9301), (1775, 5633), (3053, 3275)]