280808325

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1361}}^1$

素因数の和:1515

約数の個数: 72

約数和(自身を含む): 579623616

約数和(自身を除く): 298815291

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 131, 175, 225, 315, 393, 525, 655, 917, 1179, 1361, 1575, 1965, 2751, 3275, 4083, 4585, 5895, 6805, 8253, 9527, 9825, 12249, 13755, 20415, 22925, 28581, 29475, 34025, 41265, 47635, 61245, 68775, 85743, 102075, 142905, 178291, 206325, 238175, 306225, 428715, 534873, 714525, 891455, 1248037, 1604619, 2143575, 2674365, 3744111, 4457275, 6240185, 8023095, 11232333, 13371825, 18720555, 31200925, 40115475, 56161665, 93602775, 280808325]

約数ペア:

[(1, 280808325), (3, 93602775), (5, 56161665), (7, 40115475), (9, 31200925), (15, 18720555), (21, 13371825), (25, 11232333), (35, 8023095), (45, 6240185), (63, 4457275), (75, 3744111), (105, 2674365), (131, 2143575), (175, 1604619), (225, 1248037), (315, 891455), (393, 714525), (525, 534873), (655, 428715), (917, 306225), (1179, 238175), (1361, 206325), (1575, 178291), (1965, 142905), (2751, 102075), (3275, 85743), (4083, 68775), (4585, 61245), (5895, 47635), (6805, 41265), (8253, 34025), (9527, 29475), (9825, 28581), (12249, 22925), (13755, 20415)]