208871880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{248657}}^1$

素因数の和:248678

約数の個数: 64

約数和(自身を含む): 716135040

約数和(自身を除く): 507263160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 248657, 497314, 745971, 994628, 1243285, 1491942, 1740599, 1989256, 2486570, 2983884, 3481198, 3729855, 4973140, 5221797, 5967768, 6962396, 7459710, 8702995, 9946280, 10443594, 13924792, 14919420, 17405990, 20887188, 26108985, 29838840, 34811980, 41774376, 52217970, 69623960, 104435940, 208871880]

約数ペア:

[(1, 208871880), (2, 104435940), (3, 69623960), (4, 52217970), (5, 41774376), (6, 34811980), (7, 29838840), (8, 26108985), (10, 20887188), (12, 17405990), (14, 14919420), (15, 13924792), (20, 10443594), (21, 9946280), (24, 8702995), (28, 7459710), (30, 6962396), (35, 5967768), (40, 5221797), (42, 4973140), (56, 3729855), (60, 3481198), (70, 2983884), (84, 2486570), (105, 1989256), (120, 1740599), (140, 1491942), (168, 1243285), (210, 994628), (280, 745971), (420, 497314), (840, 248657)]