278443088

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1$

素因数の和:505

約数の個数: 120

約数和(自身を含む): 694643040

約数和(自身を除く): 416199952

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 83, 88, 98, 112, 154, 166, 176, 196, 308, 332, 389, 392, 539, 581, 616, 664, 778, 784, 913, 1078, 1162, 1232, 1328, 1556, 1826, 2156, 2324, 2723, 3112, 3652, 4067, 4279, 4312, 4648, 5446, 6224, 6391, 7304, 8134, 8558, 8624, 9296, 10892, 12782, 14608, 16268, 17116, 19061, 21784, 25564, 29953, 32287, 32536, 34232, 38122, 43568, 44737, 51128, 59906, 64574, 65072, 68464, 76244, 89474, 102256, 119812, 129148, 152488, 178948, 209671, 226009, 239624, 258296, 304976, 355157, 357896, 419342, 452018, 479248, 516592, 710314, 715792, 838684, 904036, 1420628, 1582063, 1677368, 1808072, 2486099, 2841256, 3164126, 3354736, 3616144, 4972198, 5682512, 6328252, 9944396, 12656504, 17402693, 19888792, 25313008, 34805386, 39777584, 69610772, 139221544, 278443088]

約数ペア:

[(1, 278443088), (2, 139221544), (4, 69610772), (7, 39777584), (8, 34805386), (11, 25313008), (14, 19888792), (16, 17402693), (22, 12656504), (28, 9944396), (44, 6328252), (49, 5682512), (56, 4972198), (77, 3616144), (83, 3354736), (88, 3164126), (98, 2841256), (112, 2486099), (154, 1808072), (166, 1677368), (176, 1582063), (196, 1420628), (308, 904036), (332, 838684), (389, 715792), (392, 710314), (539, 516592), (581, 479248), (616, 452018), (664, 419342), (778, 357896), (784, 355157), (913, 304976), (1078, 258296), (1162, 239624), (1232, 226009), (1328, 209671), (1556, 178948), (1826, 152488), (2156, 129148), (2324, 119812), (2723, 102256), (3112, 89474), (3652, 76244), (4067, 68464), (4279, 65072), (4312, 64574), (4648, 59906), (5446, 51128), (6224, 44737), (6391, 43568), (7304, 38122), (8134, 34232), (8558, 32536), (8624, 32287), (9296, 29953), (10892, 25564), (12782, 21784), (14608, 19061), (16268, 17116)]