206969985

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1307}}^1$

素因数の和:1364

約数の個数: 80

約数和(自身を含む): 410230656

約数和(自身を除く): 203260671

約数列:

[1, 3, 5, 9, 15, 17, 23, 27, 45, 51, 69, 81, 85, 115, 135, 153, 207, 255, 345, 391, 405, 459, 621, 765, 1035, 1173, 1307, 1377, 1863, 1955, 2295, 3105, 3519, 3921, 5865, 6535, 6885, 9315, 10557, 11763, 17595, 19605, 22219, 30061, 31671, 35289, 52785, 58815, 66657, 90183, 105867, 111095, 150305, 158355, 176445, 199971, 270549, 333285, 450915, 511037, 529335, 599913, 811647, 999855, 1352745, 1533111, 1799739, 2434941, 2555185, 2999565, 4058235, 4599333, 7665555, 8998695, 12174705, 13797999, 22996665, 41393997, 68989995, 206969985]

約数ペア:

[(1, 206969985), (3, 68989995), (5, 41393997), (9, 22996665), (15, 13797999), (17, 12174705), (23, 8998695), (27, 7665555), (45, 4599333), (51, 4058235), (69, 2999565), (81, 2555185), (85, 2434941), (115, 1799739), (135, 1533111), (153, 1352745), (207, 999855), (255, 811647), (345, 599913), (391, 529335), (405, 511037), (459, 450915), (621, 333285), (765, 270549), (1035, 199971), (1173, 176445), (1307, 158355), (1377, 150305), (1863, 111095), (1955, 105867), (2295, 90183), (3105, 66657), (3519, 58815), (3921, 52785), (5865, 35289), (6535, 31671), (6885, 30061), (9315, 22219), (10557, 19605), (11763, 17595)]