19807620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47161}}^1$

素因数の和:47180

約数の個数: 48

約数和(自身を含む): 63385728

約数和(自身を除く): 43578108

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, 47161, 94322, 141483, 188644, 235805, 282966, 330127, 471610, 565932, 660254, 707415, 943220, 990381, 1320508, 1414830, 1650635, 1980762, 2829660, 3301270, 3961524, 4951905, 6602540, 9903810, 19807620]

約数ペア:

[(1, 19807620), (2, 9903810), (3, 6602540), (4, 4951905), (5, 3961524), (6, 3301270), (7, 2829660), (10, 1980762), (12, 1650635), (14, 1414830), (15, 1320508), (20, 990381), (21, 943220), (28, 707415), (30, 660254), (35, 565932), (42, 471610), (60, 330127), (70, 282966), (84, 235805), (105, 188644), (140, 141483), (210, 94322), (420, 47161)]