28231054520

素因数分解:

$2^3\times 5^1\times {\mathrm{21157}}^1\times {\mathrm{33359}}^1$

素因数の和:54527

約数の個数: 32

約数和(自身を含む): 63524779200

約数和(自身を除く): 35293724680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21157, 33359, 42314, 66718, 84628, 105785, 133436, 166795, 169256, 211570, 266872, 333590, 423140, 667180, 846280, 1334360, 705776363, 1411552726, 2823105452, 3528881815, 5646210904, 7057763630, 14115527260, 28231054520]

約数ペア:

[(1, 28231054520), (2, 14115527260), (4, 7057763630), (5, 5646210904), (8, 3528881815), (10, 2823105452), (20, 1411552726), (40, 705776363), (21157, 1334360), (33359, 846280), (42314, 667180), (66718, 423140), (84628, 333590), (105785, 266872), (133436, 211570), (166795, 169256)]