68778855

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1303}}^1$

素因数の和:1357

約数の個数: 64

約数和(自身を含む): 135198720

約数和(自身を除く): 66419865

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 85, 115, 135, 153, 207, 255, 345, 391, 459, 621, 765, 1035, 1173, 1303, 1955, 2295, 3105, 3519, 3909, 5865, 6515, 10557, 11727, 17595, 19545, 22151, 29969, 35181, 52785, 58635, 66453, 89907, 110755, 149845, 175905, 199359, 269721, 332265, 449535, 509473, 598077, 809163, 996795, 1348605, 1528419, 2547365, 2990385, 4045815, 4585257, 7642095, 13755771, 22926285, 68778855]

約数ペア:

[(1, 68778855), (3, 22926285), (5, 13755771), (9, 7642095), (15, 4585257), (17, 4045815), (23, 2990385), (27, 2547365), (45, 1528419), (51, 1348605), (69, 996795), (85, 809163), (115, 598077), (135, 509473), (153, 449535), (207, 332265), (255, 269721), (345, 199359), (391, 175905), (459, 149845), (621, 110755), (765, 89907), (1035, 66453), (1173, 58635), (1303, 52785), (1955, 35181), (2295, 29969), (3105, 22151), (3519, 19545), (3909, 17595), (5865, 11727), (6515, 10557)]