257306896

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2861}}^1$

素因数の和:2960

約数の個数: 80

約数和(自身を含む): 630281088

約数和(自身を除く): 372974192

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 73, 77, 88, 112, 146, 154, 176, 292, 308, 511, 584, 616, 803, 1022, 1168, 1232, 1606, 2044, 2861, 3212, 4088, 5621, 5722, 6424, 8176, 11242, 11444, 12848, 20027, 22484, 22888, 31471, 40054, 44968, 45776, 62942, 80108, 89936, 125884, 160216, 208853, 220297, 251768, 320432, 417706, 440594, 503536, 835412, 881188, 1461971, 1670824, 1762376, 2297383, 2923942, 3341648, 3524752, 4594766, 5847884, 9189532, 11695768, 16081681, 18379064, 23391536, 32163362, 36758128, 64326724, 128653448, 257306896]

約数ペア:

[(1, 257306896), (2, 128653448), (4, 64326724), (7, 36758128), (8, 32163362), (11, 23391536), (14, 18379064), (16, 16081681), (22, 11695768), (28, 9189532), (44, 5847884), (56, 4594766), (73, 3524752), (77, 3341648), (88, 2923942), (112, 2297383), (146, 1762376), (154, 1670824), (176, 1461971), (292, 881188), (308, 835412), (511, 503536), (584, 440594), (616, 417706), (803, 320432), (1022, 251768), (1168, 220297), (1232, 208853), (1606, 160216), (2044, 125884), (2861, 89936), (3212, 80108), (4088, 62942), (5621, 45776), (5722, 44968), (6424, 40054), (8176, 31471), (11242, 22888), (11444, 22484), (12848, 20027)]