80531020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{50969}}^1$

素因数の和:51057

約数の個数: 24

約数和(自身を含む): 171259200

約数和(自身を除く): 90728180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 50969, 101938, 203876, 254845, 509690, 1019380, 4026551, 8053102, 16106204, 20132755, 40265510, 80531020]

約数ペア:

[(1, 80531020), (2, 40265510), (4, 20132755), (5, 16106204), (10, 8053102), (20, 4026551), (79, 1019380), (158, 509690), (316, 254845), (395, 203876), (790, 101938), (1580, 50969)]