51287680

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 123770880

約数和(自身を除く): 72483200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 508, 631, 635, 640, 1016, 1262, 1270, 2032, 2524, 2540, 3155, 4064, 5048, 5080, 6310, 8128, 10096, 10160, 12620, 16256, 20192, 20320, 25240, 40384, 40640, 50480, 80137, 80768, 81280, 100960, 160274, 201920, 320548, 400685, 403840, 641096, 801370, 1282192, 1602740, 2564384, 3205480, 5128768, 6410960, 10257536, 12821920, 25643840, 51287680]

約数ペア:

[(1, 51287680), (2, 25643840), (4, 12821920), (5, 10257536), (8, 6410960), (10, 5128768), (16, 3205480), (20, 2564384), (32, 1602740), (40, 1282192), (64, 801370), (80, 641096), (127, 403840), (128, 400685), (160, 320548), (254, 201920), (320, 160274), (508, 100960), (631, 81280), (635, 80768), (640, 80137), (1016, 50480), (1262, 40640), (1270, 40384), (2032, 25240), (2524, 20320), (2540, 20192), (3155, 16256), (4064, 12620), (5048, 10160), (5080, 10096), (6310, 8128)]