201812240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{647}}^1$

素因数の和:1224

約数の個数: 80

約数和(自身を含む): 538036992

約数和(自身を除く): 336224752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 557, 560, 647, 1114, 1294, 2228, 2588, 2785, 3235, 3899, 4456, 4529, 5176, 5570, 6470, 7798, 8912, 9058, 10352, 11140, 12940, 15596, 18116, 19495, 22280, 22645, 25880, 31192, 36232, 38990, 44560, 45290, 51760, 62384, 72464, 77980, 90580, 155960, 181160, 311920, 360379, 362320, 720758, 1441516, 1801895, 2522653, 2883032, 3603790, 5045306, 5766064, 7207580, 10090612, 12613265, 14415160, 20181224, 25226530, 28830320, 40362448, 50453060, 100906120, 201812240]

約数ペア:

[(1, 201812240), (2, 100906120), (4, 50453060), (5, 40362448), (7, 28830320), (8, 25226530), (10, 20181224), (14, 14415160), (16, 12613265), (20, 10090612), (28, 7207580), (35, 5766064), (40, 5045306), (56, 3603790), (70, 2883032), (80, 2522653), (112, 1801895), (140, 1441516), (280, 720758), (557, 362320), (560, 360379), (647, 311920), (1114, 181160), (1294, 155960), (2228, 90580), (2588, 77980), (2785, 72464), (3235, 62384), (3899, 51760), (4456, 45290), (4529, 44560), (5176, 38990), (5570, 36232), (6470, 31192), (7798, 25880), (8912, 22645), (9058, 22280), (10352, 19495), (11140, 18116), (12940, 15596)]