71319500

素因数分解:

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

素因数の和:145

約数の個数: 144

約数和(自身を含む): 188225856

約数和(自身を除く): 116906356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 49, 50, 70, 71, 82, 98, 100, 125, 140, 142, 164, 175, 196, 205, 245, 250, 284, 287, 350, 355, 410, 490, 497, 500, 574, 700, 710, 820, 875, 980, 994, 1025, 1148, 1225, 1420, 1435, 1750, 1775, 1988, 2009, 2050, 2450, 2485, 2870, 2911, 3479, 3500, 3550, 4018, 4100, 4900, 4970, 5125, 5740, 5822, 6125, 6958, 7100, 7175, 8036, 8875, 9940, 10045, 10250, 11644, 12250, 12425, 13916, 14350, 14555, 17395, 17750, 20090, 20377, 20500, 24500, 24850, 28700, 29110, 34790, 35500, 35875, 40180, 40754, 49700, 50225, 58220, 62125, 69580, 71750, 72775, 81508, 86975, 100450, 101885, 124250, 142639, 143500, 145550, 173950, 200900, 203770, 248500, 251125, 285278, 291100, 347900, 363875, 407540, 434875, 502250, 509425, 570556, 713195, 727750, 869750, 1004500, 1018850, 1426390, 1455500, 1739500, 2037700, 2547125, 2852780, 3565975, 5094250, 7131950, 10188500, 14263900, 17829875, 35659750, 71319500]

約数ペア:

[(1, 71319500), (2, 35659750), (4, 17829875), (5, 14263900), (7, 10188500), (10, 7131950), (14, 5094250), (20, 3565975), (25, 2852780), (28, 2547125), (35, 2037700), (41, 1739500), (49, 1455500), (50, 1426390), (70, 1018850), (71, 1004500), (82, 869750), (98, 727750), (100, 713195), (125, 570556), (140, 509425), (142, 502250), (164, 434875), (175, 407540), (196, 363875), (205, 347900), (245, 291100), (250, 285278), (284, 251125), (287, 248500), (350, 203770), (355, 200900), (410, 173950), (490, 145550), (497, 143500), (500, 142639), (574, 124250), (700, 101885), (710, 100450), (820, 86975), (875, 81508), (980, 72775), (994, 71750), (1025, 69580), (1148, 62125), (1225, 58220), (1420, 50225), (1435, 49700), (1750, 40754), (1775, 40180), (1988, 35875), (2009, 35500), (2050, 34790), (2450, 29110), (2485, 28700), (2870, 24850), (2911, 24500), (3479, 20500), (3500, 20377), (3550, 20090), (4018, 17750), (4100, 17395), (4900, 14555), (4970, 14350), (5125, 13916), (5740, 12425), (5822, 12250), (6125, 11644), (6958, 10250), (7100, 10045), (7175, 9940), (8036, 8875)]