28737520

素因数分解:

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

素因数の和:7358

約数の個数: 60

約数和(自身を含む): 77733864

約数和(自身を除く): 48996344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7331, 14662, 29324, 36655, 51317, 58648, 73310, 102634, 117296, 146620, 205268, 256585, 293240, 359219, 410536, 513170, 586480, 718438, 821072, 1026340, 1436876, 1796095, 2052680, 2873752, 3592190, 4105360, 5747504, 7184380, 14368760, 28737520]

約数ペア:

[(1, 28737520), (2, 14368760), (4, 7184380), (5, 5747504), (7, 4105360), (8, 3592190), (10, 2873752), (14, 2052680), (16, 1796095), (20, 1436876), (28, 1026340), (35, 821072), (40, 718438), (49, 586480), (56, 513170), (70, 410536), (80, 359219), (98, 293240), (112, 256585), (140, 205268), (196, 146620), (245, 117296), (280, 102634), (392, 73310), (490, 58648), (560, 51317), (784, 36655), (980, 29324), (1960, 14662), (3920, 7331)]