18192860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4481}}^1$

素因数の和:4526

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 26985700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4481, 8962, 17924, 22405, 31367, 44810, 62734, 89620, 125468, 129949, 156835, 259898, 313670, 519796, 627340, 649745, 909643, 1299490, 1819286, 2598980, 3638572, 4548215, 9096430, 18192860]

約数ペア:

[(1, 18192860), (2, 9096430), (4, 4548215), (5, 3638572), (7, 2598980), (10, 1819286), (14, 1299490), (20, 909643), (28, 649745), (29, 627340), (35, 519796), (58, 313670), (70, 259898), (116, 156835), (140, 129949), (145, 125468), (203, 89620), (290, 62734), (406, 44810), (580, 31367), (812, 22405), (1015, 17924), (2030, 8962), (4060, 4481)]