1215020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 2587200

約数和(自身を除く): 1372180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 769, 790, 1538, 1580, 3076, 3845, 7690, 15380, 60751, 121502, 243004, 303755, 607510, 1215020]

約数ペア:

[(1, 1215020), (2, 607510), (4, 303755), (5, 243004), (10, 121502), (20, 60751), (79, 15380), (158, 7690), (316, 3845), (395, 3076), (769, 1580), (790, 1538)]