251544720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{149729}}^1$

素因数の和:149752

約数の個数: 80

約数和(自身を含む): 891192960

約数和(自身を除く): 639648240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 149729, 299458, 449187, 598916, 748645, 898374, 1048103, 1197832, 1497290, 1796748, 2096206, 2245935, 2395664, 2994580, 3144309, 3593496, 4192412, 4491870, 5240515, 5989160, 6288618, 7186992, 8384824, 8983740, 10481030, 11978320, 12577236, 15721545, 16769648, 17967480, 20962060, 25154472, 31443090, 35934960, 41924120, 50308944, 62886180, 83848240, 125772360, 251544720]

約数ペア:

[(1, 251544720), (2, 125772360), (3, 83848240), (4, 62886180), (5, 50308944), (6, 41924120), (7, 35934960), (8, 31443090), (10, 25154472), (12, 20962060), (14, 17967480), (15, 16769648), (16, 15721545), (20, 12577236), (21, 11978320), (24, 10481030), (28, 8983740), (30, 8384824), (35, 7186992), (40, 6288618), (42, 5989160), (48, 5240515), (56, 4491870), (60, 4192412), (70, 3593496), (80, 3144309), (84, 2994580), (105, 2395664), (112, 2245935), (120, 2096206), (140, 1796748), (168, 1497290), (210, 1197832), (240, 1048103), (280, 898374), (336, 748645), (420, 598916), (560, 449187), (840, 299458), (1680, 149729)]