257020975

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{2269}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 334398240

約数和(自身を除く): 77377265

約数列:

[1, 5, 23, 25, 115, 197, 575, 985, 2269, 4531, 4925, 11345, 22655, 52187, 56725, 113275, 260935, 446993, 1304675, 2234965, 10280839, 11174825, 51404195, 257020975]

約数ペア:

[(1, 257020975), (5, 51404195), (23, 11174825), (25, 10280839), (115, 2234965), (197, 1304675), (575, 446993), (985, 260935), (2269, 113275), (4531, 56725), (4925, 52187), (11345, 22655)]