20175020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^2$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 43286880

約数和(自身を除く): 23111860

約数列:

[1, 2, 4, 5, 10, 20, 79, 113, 158, 226, 316, 395, 452, 565, 790, 1130, 1580, 2260, 8927, 12769, 17854, 25538, 35708, 44635, 51076, 63845, 89270, 127690, 178540, 255380, 1008751, 2017502, 4035004, 5043755, 10087510, 20175020]

約数ペア:

[(1, 20175020), (2, 10087510), (4, 5043755), (5, 4035004), (10, 2017502), (20, 1008751), (79, 255380), (113, 178540), (158, 127690), (226, 89270), (316, 63845), (395, 51076), (452, 44635), (565, 35708), (790, 25538), (1130, 17854), (1580, 12769), (2260, 8927)]