990479928760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{8821517}}^1$

素因数の和:8821936

約数の個数: 64

約数和(自身を含む): 2553300169920

約数和(自身を除く): 1562820241160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 401, 802, 1604, 2005, 2807, 3208, 4010, 5614, 8020, 11228, 14035, 16040, 22456, 28070, 56140, 112280, 8821517, 17643034, 35286068, 44107585, 61750619, 70572136, 88215170, 123501238, 176430340, 247002476, 308753095, 352860680, 494004952, 617506190, 1235012380, 2470024760, 3537428317, 7074856634, 14149713268, 17687141585, 24761998219, 28299426536, 35374283170, 49523996438, 70748566340, 99047992876, 123809991095, 141497132680, 198095985752, 247619982190, 495239964380, 990479928760]

約数ペア:

[(1, 990479928760), (2, 495239964380), (4, 247619982190), (5, 198095985752), (7, 141497132680), (8, 123809991095), (10, 99047992876), (14, 70748566340), (20, 49523996438), (28, 35374283170), (35, 28299426536), (40, 24761998219), (56, 17687141585), (70, 14149713268), (140, 7074856634), (280, 3537428317), (401, 2470024760), (802, 1235012380), (1604, 617506190), (2005, 494004952), (2807, 352860680), (3208, 308753095), (4010, 247002476), (5614, 176430340), (8020, 123501238), (11228, 88215170), (14035, 70572136), (16040, 61750619), (22456, 44107585), (28070, 35286068), (56140, 17643034), (112280, 8821517)]