208616220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26953}}^1$

素因数の和:27011

約数の個数: 72

約数和(自身を含む): 647542896

約数和(自身を除く): 438926676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 26953, 53906, 80859, 107812, 134765, 161718, 242577, 269530, 323436, 404295, 485154, 539060, 808590, 970308, 1158979, 1212885, 1617180, 2317958, 2425770, 3476937, 4635916, 4851540, 5794895, 6953874, 10430811, 11589790, 13907748, 17384685, 20861622, 23179580, 34769370, 41723244, 52154055, 69538740, 104308110, 208616220]

約数ペア:

[(1, 208616220), (2, 104308110), (3, 69538740), (4, 52154055), (5, 41723244), (6, 34769370), (9, 23179580), (10, 20861622), (12, 17384685), (15, 13907748), (18, 11589790), (20, 10430811), (30, 6953874), (36, 5794895), (43, 4851540), (45, 4635916), (60, 3476937), (86, 2425770), (90, 2317958), (129, 1617180), (172, 1212885), (180, 1158979), (215, 970308), (258, 808590), (387, 539060), (430, 485154), (516, 404295), (645, 323436), (774, 269530), (860, 242577), (1290, 161718), (1548, 134765), (1935, 107812), (2580, 80859), (3870, 53906), (7740, 26953)]