66600980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1801}}^1$

素因数の和:1896

約数の個数: 36

約数和(自身を含む): 143269812

約数和(自身を除く): 76668832

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1801, 1849, 3602, 3698, 7204, 7396, 9005, 9245, 18010, 18490, 36020, 36980, 77443, 154886, 309772, 387215, 774430, 1548860, 3330049, 6660098, 13320196, 16650245, 33300490, 66600980]

約数ペア:

[(1, 66600980), (2, 33300490), (4, 16650245), (5, 13320196), (10, 6660098), (20, 3330049), (43, 1548860), (86, 774430), (172, 387215), (215, 309772), (430, 154886), (860, 77443), (1801, 36980), (1849, 36020), (3602, 18490), (3698, 18010), (7204, 9245), (7396, 9005)]