28627760

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:203

約数の個数: 120

約数和(自身を含む): 79302960

約数和(自身を除く): 50675200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 67, 70, 80, 98, 109, 112, 134, 140, 196, 218, 245, 268, 280, 335, 392, 436, 469, 490, 536, 545, 560, 670, 763, 784, 872, 938, 980, 1072, 1090, 1340, 1526, 1744, 1876, 1960, 2180, 2345, 2680, 3052, 3283, 3752, 3815, 3920, 4360, 4690, 5341, 5360, 6104, 6566, 7303, 7504, 7630, 8720, 9380, 10682, 12208, 13132, 14606, 15260, 16415, 18760, 21364, 26264, 26705, 29212, 30520, 32830, 36515, 37520, 42728, 51121, 52528, 53410, 58424, 61040, 65660, 73030, 85456, 102242, 106820, 116848, 131320, 146060, 204484, 213640, 255605, 262640, 292120, 357847, 408968, 427280, 511210, 584240, 715694, 817936, 1022420, 1431388, 1789235, 2044840, 2862776, 3578470, 4089680, 5725552, 7156940, 14313880, 28627760]

約数ペア:

[(1, 28627760), (2, 14313880), (4, 7156940), (5, 5725552), (7, 4089680), (8, 3578470), (10, 2862776), (14, 2044840), (16, 1789235), (20, 1431388), (28, 1022420), (35, 817936), (40, 715694), (49, 584240), (56, 511210), (67, 427280), (70, 408968), (80, 357847), (98, 292120), (109, 262640), (112, 255605), (134, 213640), (140, 204484), (196, 146060), (218, 131320), (245, 116848), (268, 106820), (280, 102242), (335, 85456), (392, 73030), (436, 65660), (469, 61040), (490, 58424), (536, 53410), (545, 52528), (560, 51121), (670, 42728), (763, 37520), (784, 36515), (872, 32830), (938, 30520), (980, 29212), (1072, 26705), (1090, 26264), (1340, 21364), (1526, 18760), (1744, 16415), (1876, 15260), (1960, 14606), (2180, 13132), (2345, 12208), (2680, 10682), (3052, 9380), (3283, 8720), (3752, 7630), (3815, 7504), (3920, 7303), (4360, 6566), (4690, 6104), (5341, 5360)]