28342020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67481}}^1$

素因数の和:67500

約数の個数: 48

約数和(自身を含む): 90695808

約数和(自身を除く): 62353788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67481, 134962, 202443, 269924, 337405, 404886, 472367, 674810, 809772, 944734, 1012215, 1349620, 1417101, 1889468, 2024430, 2361835, 2834202, 4048860, 4723670, 5668404, 7085505, 9447340, 14171010, 28342020]

約数ペア:

[(1, 28342020), (2, 14171010), (3, 9447340), (4, 7085505), (5, 5668404), (6, 4723670), (7, 4048860), (10, 2834202), (12, 2361835), (14, 2024430), (15, 1889468), (20, 1417101), (21, 1349620), (28, 1012215), (30, 944734), (35, 809772), (42, 674810), (60, 472367), (70, 404886), (84, 337405), (105, 269924), (140, 202443), (210, 134962), (420, 67481)]