18262020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43481}}^1$

素因数の和:43500

約数の個数: 48

約数和(自身を含む): 58439808

約数和(自身を除く): 40177788

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, 43481, 86962, 130443, 173924, 217405, 260886, 304367, 434810, 521772, 608734, 652215, 869620, 913101, 1217468, 1304430, 1521835, 1826202, 2608860, 3043670, 3652404, 4565505, 6087340, 9131010, 18262020]

約数ペア:

[(1, 18262020), (2, 9131010), (3, 6087340), (4, 4565505), (5, 3652404), (6, 3043670), (7, 2608860), (10, 1826202), (12, 1521835), (14, 1304430), (15, 1217468), (20, 913101), (21, 869620), (28, 652215), (30, 608734), (35, 521772), (42, 434810), (60, 304367), (70, 260886), (84, 217405), (105, 173924), (140, 130443), (210, 86962), (420, 43481)]