20920570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8269}}^1$

素因数の和:8310

約数の個数: 32

約数和(自身を含む): 42871680

約数和(自身を除く): 21951110

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8269, 16538, 41345, 82690, 90959, 181918, 190187, 380374, 454795, 909590, 950935, 1901870, 2092057, 4184114, 10460285, 20920570]

約数ペア:

[(1, 20920570), (2, 10460285), (5, 4184114), (10, 2092057), (11, 1901870), (22, 950935), (23, 909590), (46, 454795), (55, 380374), (110, 190187), (115, 181918), (230, 90959), (253, 82690), (506, 41345), (1265, 16538), (2530, 8269)]