261609130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{569}}^1\times {\mathrm{1999}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 492480000

約数和(自身を除く): 230870870

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 569, 1138, 1999, 2845, 3998, 5690, 9995, 13087, 19990, 26174, 45977, 65435, 91954, 130870, 229885, 459770, 1137431, 2274862, 5687155, 11374310, 26160913, 52321826, 130804565, 261609130]

約数ペア:

[(1, 261609130), (2, 130804565), (5, 52321826), (10, 26160913), (23, 11374310), (46, 5687155), (115, 2274862), (230, 1137431), (569, 459770), (1138, 229885), (1999, 130870), (2845, 91954), (3998, 65435), (5690, 45977), (9995, 26174), (13087, 19990)]