20526800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7331}}^1$

素因数の和:7356

約数の個数: 60

約数和(自身を含む): 56368416

約数和(自身を除く): 35841616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7331, 14662, 29324, 36655, 51317, 58648, 73310, 102634, 117296, 146620, 183275, 205268, 256585, 293240, 366550, 410536, 513170, 586480, 733100, 821072, 1026340, 1282925, 1466200, 2052680, 2565850, 2932400, 4105360, 5131700, 10263400, 20526800]

約数ペア:

[(1, 20526800), (2, 10263400), (4, 5131700), (5, 4105360), (7, 2932400), (8, 2565850), (10, 2052680), (14, 1466200), (16, 1282925), (20, 1026340), (25, 821072), (28, 733100), (35, 586480), (40, 513170), (50, 410536), (56, 366550), (70, 293240), (80, 256585), (100, 205268), (112, 183275), (140, 146620), (175, 117296), (200, 102634), (280, 73310), (350, 58648), (400, 51317), (560, 36655), (700, 29324), (1400, 14662), (2800, 7331)]