640867248

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{211927}}^1$

素因数の和:211951

約数の個数: 80

約数和(自身を含む): 2102325760

約数和(自身を除く): 1461458512

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 84, 108, 112, 126, 144, 168, 189, 216, 252, 336, 378, 432, 504, 756, 1008, 1512, 3024, 211927, 423854, 635781, 847708, 1271562, 1483489, 1695416, 1907343, 2543124, 2966978, 3390832, 3814686, 4450467, 5086248, 5722029, 5933956, 7629372, 8900934, 10172496, 11444058, 11867912, 13351401, 15258744, 17801868, 22888116, 23735824, 26702802, 30517488, 35603736, 40054203, 45776232, 53405604, 71207472, 80108406, 91552464, 106811208, 160216812, 213622416, 320433624, 640867248]

約数ペア:

[(1, 640867248), (2, 320433624), (3, 213622416), (4, 160216812), (6, 106811208), (7, 91552464), (8, 80108406), (9, 71207472), (12, 53405604), (14, 45776232), (16, 40054203), (18, 35603736), (21, 30517488), (24, 26702802), (27, 23735824), (28, 22888116), (36, 17801868), (42, 15258744), (48, 13351401), (54, 11867912), (56, 11444058), (63, 10172496), (72, 8900934), (84, 7629372), (108, 5933956), (112, 5722029), (126, 5086248), (144, 4450467), (168, 3814686), (189, 3390832), (216, 2966978), (252, 2543124), (336, 1907343), (378, 1695416), (432, 1483489), (504, 1271562), (756, 847708), (1008, 635781), (1512, 423854), (3024, 211927)]