254865380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{991}}^1$

素因数の和:1185

約数の個数: 96

約数和(自身を含む): 671956992

約数和(自身を除く): 417091612

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 167, 220, 308, 334, 385, 668, 770, 835, 991, 1169, 1540, 1670, 1837, 1982, 2338, 3340, 3674, 3964, 4676, 4955, 5845, 6937, 7348, 9185, 9910, 10901, 11690, 12859, 13874, 18370, 19820, 21802, 23380, 25718, 27748, 34685, 36740, 43604, 51436, 54505, 64295, 69370, 76307, 109010, 128590, 138740, 152614, 165497, 218020, 257180, 305228, 330994, 381535, 661988, 763070, 827485, 1158479, 1526140, 1654970, 1820467, 2316958, 3309940, 3640934, 4633916, 5792395, 7281868, 9102335, 11584790, 12743269, 18204670, 23169580, 25486538, 36409340, 50973076, 63716345, 127432690, 254865380]

約数ペア:

[(1, 254865380), (2, 127432690), (4, 63716345), (5, 50973076), (7, 36409340), (10, 25486538), (11, 23169580), (14, 18204670), (20, 12743269), (22, 11584790), (28, 9102335), (35, 7281868), (44, 5792395), (55, 4633916), (70, 3640934), (77, 3309940), (110, 2316958), (140, 1820467), (154, 1654970), (167, 1526140), (220, 1158479), (308, 827485), (334, 763070), (385, 661988), (668, 381535), (770, 330994), (835, 305228), (991, 257180), (1169, 218020), (1540, 165497), (1670, 152614), (1837, 138740), (1982, 128590), (2338, 109010), (3340, 76307), (3674, 69370), (3964, 64295), (4676, 54505), (4955, 51436), (5845, 43604), (6937, 36740), (7348, 34685), (9185, 27748), (9910, 25718), (10901, 23380), (11690, 21802), (12859, 19820), (13874, 18370)]