778814680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{379}}^1$

素因数の和:617

約数の個数: 128

約数和(自身を含む): 2068416000

約数和(自身を除く): 1289601320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 179, 205, 280, 287, 328, 358, 379, 410, 574, 716, 758, 820, 895, 1148, 1253, 1432, 1435, 1516, 1640, 1790, 1895, 2296, 2506, 2653, 2870, 3032, 3580, 3790, 5012, 5306, 5740, 6265, 7160, 7339, 7580, 10024, 10612, 11480, 12530, 13265, 14678, 15160, 15539, 21224, 25060, 26530, 29356, 31078, 36695, 50120, 51373, 53060, 58712, 62156, 67841, 73390, 77695, 102746, 106120, 108773, 124312, 135682, 146780, 155390, 205492, 217546, 256865, 271364, 293560, 310780, 339205, 410984, 435092, 474887, 513730, 542728, 543865, 621560, 678410, 870184, 949774, 1027460, 1087730, 1356820, 1899548, 2054920, 2175460, 2374435, 2713640, 2781481, 3799096, 4350920, 4748870, 5562962, 9497740, 11125924, 13907405, 18995480, 19470367, 22251848, 27814810, 38940734, 55629620, 77881468, 97351835, 111259240, 155762936, 194703670, 389407340, 778814680]

約数ペア:

[(1, 778814680), (2, 389407340), (4, 194703670), (5, 155762936), (7, 111259240), (8, 97351835), (10, 77881468), (14, 55629620), (20, 38940734), (28, 27814810), (35, 22251848), (40, 19470367), (41, 18995480), (56, 13907405), (70, 11125924), (82, 9497740), (140, 5562962), (164, 4748870), (179, 4350920), (205, 3799096), (280, 2781481), (287, 2713640), (328, 2374435), (358, 2175460), (379, 2054920), (410, 1899548), (574, 1356820), (716, 1087730), (758, 1027460), (820, 949774), (895, 870184), (1148, 678410), (1253, 621560), (1432, 543865), (1435, 542728), (1516, 513730), (1640, 474887), (1790, 435092), (1895, 410984), (2296, 339205), (2506, 310780), (2653, 293560), (2870, 271364), (3032, 256865), (3580, 217546), (3790, 205492), (5012, 155390), (5306, 146780), (5740, 135682), (6265, 124312), (7160, 108773), (7339, 106120), (7580, 102746), (10024, 77695), (10612, 73390), (11480, 67841), (12530, 62156), (13265, 58712), (14678, 53060), (15160, 51373), (15539, 50120), (21224, 36695), (25060, 31078), (26530, 29356)]