80906980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 214244352

約数和(自身を除く): 133337372

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 107, 110, 140, 154, 214, 220, 308, 385, 428, 491, 535, 749, 770, 982, 1070, 1177, 1498, 1540, 1964, 2140, 2354, 2455, 2996, 3437, 3745, 4708, 4910, 5401, 5885, 6874, 7490, 8239, 9820, 10802, 11770, 13748, 14980, 16478, 17185, 21604, 23540, 27005, 32956, 34370, 37807, 41195, 52537, 54010, 68740, 75614, 82390, 105074, 108020, 151228, 164780, 189035, 210148, 262685, 367759, 378070, 525370, 577907, 735518, 756140, 1050740, 1155814, 1471036, 1838795, 2311628, 2889535, 3677590, 4045349, 5779070, 7355180, 8090698, 11558140, 16181396, 20226745, 40453490, 80906980]

約数ペア:

[(1, 80906980), (2, 40453490), (4, 20226745), (5, 16181396), (7, 11558140), (10, 8090698), (11, 7355180), (14, 5779070), (20, 4045349), (22, 3677590), (28, 2889535), (35, 2311628), (44, 1838795), (55, 1471036), (70, 1155814), (77, 1050740), (107, 756140), (110, 735518), (140, 577907), (154, 525370), (214, 378070), (220, 367759), (308, 262685), (385, 210148), (428, 189035), (491, 164780), (535, 151228), (749, 108020), (770, 105074), (982, 82390), (1070, 75614), (1177, 68740), (1498, 54010), (1540, 52537), (1964, 41195), (2140, 37807), (2354, 34370), (2455, 32956), (2996, 27005), (3437, 23540), (3745, 21604), (4708, 17185), (4910, 16478), (5401, 14980), (5885, 13748), (6874, 11770), (7490, 10802), (8239, 9820)]