81157020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2647}}^1$

素因数の和:2739

約数の個数: 96

約数和(自身を含む): 263359488

約数和(自身を除く): 182202468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 73, 84, 105, 140, 146, 210, 219, 292, 365, 420, 438, 511, 730, 876, 1022, 1095, 1460, 1533, 2044, 2190, 2555, 2647, 3066, 4380, 5110, 5294, 6132, 7665, 7941, 10220, 10588, 13235, 15330, 15882, 18529, 26470, 30660, 31764, 37058, 39705, 52940, 55587, 74116, 79410, 92645, 111174, 158820, 185290, 193231, 222348, 277935, 370580, 386462, 555870, 579693, 772924, 966155, 1111740, 1159386, 1352617, 1932310, 2318772, 2705234, 2898465, 3864620, 4057851, 5410468, 5796930, 6763085, 8115702, 11593860, 13526170, 16231404, 20289255, 27052340, 40578510, 81157020]

約数ペア:

[(1, 81157020), (2, 40578510), (3, 27052340), (4, 20289255), (5, 16231404), (6, 13526170), (7, 11593860), (10, 8115702), (12, 6763085), (14, 5796930), (15, 5410468), (20, 4057851), (21, 3864620), (28, 2898465), (30, 2705234), (35, 2318772), (42, 1932310), (60, 1352617), (70, 1159386), (73, 1111740), (84, 966155), (105, 772924), (140, 579693), (146, 555870), (210, 386462), (219, 370580), (292, 277935), (365, 222348), (420, 193231), (438, 185290), (511, 158820), (730, 111174), (876, 92645), (1022, 79410), (1095, 74116), (1460, 55587), (1533, 52940), (2044, 39705), (2190, 37058), (2555, 31764), (2647, 30660), (3066, 26470), (4380, 18529), (5110, 15882), (5294, 15330), (6132, 13235), (7665, 10588), (7941, 10220)]