1245702020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{788419}}^1$

素因数の和:788507

約数の個数: 24

約数和(自身を含む): 2649091200

約数和(自身を除く): 1403389180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 788419, 1576838, 3153676, 3942095, 7884190, 15768380, 62285101, 124570202, 249140404, 311425505, 622851010, 1245702020]

約数ペア:

[(1, 1245702020), (2, 622851010), (4, 311425505), (5, 249140404), (10, 124570202), (20, 62285101), (79, 15768380), (158, 7884190), (316, 3942095), (395, 3153676), (790, 1576838), (1580, 788419)]