28527800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 80151120

約数和(自身を除く): 51623320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 41, 49, 50, 56, 70, 71, 82, 98, 100, 140, 142, 164, 175, 196, 200, 205, 245, 280, 284, 287, 328, 350, 355, 392, 410, 490, 497, 568, 574, 700, 710, 820, 980, 994, 1025, 1148, 1225, 1400, 1420, 1435, 1640, 1775, 1960, 1988, 2009, 2050, 2296, 2450, 2485, 2840, 2870, 2911, 3479, 3550, 3976, 4018, 4100, 4900, 4970, 5740, 5822, 6958, 7100, 7175, 8036, 8200, 9800, 9940, 10045, 11480, 11644, 12425, 13916, 14200, 14350, 14555, 16072, 17395, 19880, 20090, 20377, 23288, 24850, 27832, 28700, 29110, 34790, 40180, 40754, 49700, 50225, 57400, 58220, 69580, 72775, 80360, 81508, 86975, 99400, 100450, 101885, 116440, 139160, 142639, 145550, 163016, 173950, 200900, 203770, 285278, 291100, 347900, 401800, 407540, 509425, 570556, 582200, 695800, 713195, 815080, 1018850, 1141112, 1426390, 2037700, 2852780, 3565975, 4075400, 5705560, 7131950, 14263900, 28527800]

約数ペア:

[(1, 28527800), (2, 14263900), (4, 7131950), (5, 5705560), (7, 4075400), (8, 3565975), (10, 2852780), (14, 2037700), (20, 1426390), (25, 1141112), (28, 1018850), (35, 815080), (40, 713195), (41, 695800), (49, 582200), (50, 570556), (56, 509425), (70, 407540), (71, 401800), (82, 347900), (98, 291100), (100, 285278), (140, 203770), (142, 200900), (164, 173950), (175, 163016), (196, 145550), (200, 142639), (205, 139160), (245, 116440), (280, 101885), (284, 100450), (287, 99400), (328, 86975), (350, 81508), (355, 80360), (392, 72775), (410, 69580), (490, 58220), (497, 57400), (568, 50225), (574, 49700), (700, 40754), (710, 40180), (820, 34790), (980, 29110), (994, 28700), (1025, 27832), (1148, 24850), (1225, 23288), (1400, 20377), (1420, 20090), (1435, 19880), (1640, 17395), (1775, 16072), (1960, 14555), (1988, 14350), (2009, 14200), (2050, 13916), (2296, 12425), (2450, 11644), (2485, 11480), (2840, 10045), (2870, 9940), (2911, 9800), (3479, 8200), (3550, 8036), (3976, 7175), (4018, 7100), (4100, 6958), (4900, 5822), (4970, 5740)]