280056777

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{521}}^1$

素因数の和:734

約数の個数: 64

約数和(自身を含む): 505128960

約数和(自身を除く): 225072183

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 179, 231, 273, 429, 521, 537, 1001, 1253, 1563, 1969, 2327, 3003, 3647, 3759, 5731, 5907, 6773, 6981, 10941, 13783, 16289, 17193, 20319, 25597, 40117, 41349, 47411, 48867, 74503, 76791, 93259, 120351, 142233, 179179, 223509, 279777, 521521, 537537, 652813, 1025849, 1212367, 1564563, 1958439, 3077547, 3637101, 7180943, 8486569, 13336037, 21542829, 25459707, 40008111, 93352259, 280056777]

約数ペア:

[(1, 280056777), (3, 93352259), (7, 40008111), (11, 25459707), (13, 21542829), (21, 13336037), (33, 8486569), (39, 7180943), (77, 3637101), (91, 3077547), (143, 1958439), (179, 1564563), (231, 1212367), (273, 1025849), (429, 652813), (521, 537537), (537, 521521), (1001, 279777), (1253, 223509), (1563, 179179), (1969, 142233), (2327, 120351), (3003, 93259), (3647, 76791), (3759, 74503), (5731, 48867), (5907, 47411), (6773, 41349), (6981, 40117), (10941, 25597), (13783, 20319), (16289, 17193)]