1640675

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 2202240

約数和(自身を除く): 561565

約数列:

[1, 5, 25, 29, 31, 73, 145, 155, 365, 725, 775, 899, 1825, 2117, 2263, 4495, 10585, 11315, 22475, 52925, 56575, 65627, 328135, 1640675]

約数ペア:

[(1, 1640675), (5, 328135), (25, 65627), (29, 56575), (31, 52925), (73, 22475), (145, 11315), (155, 10585), (365, 4495), (725, 2263), (775, 2117), (899, 1825)]