1279342225

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2671}}^1$

素因数の和:2735

約数の個数: 72

約数和(自身を含む): 2039655168

約数和(自身を除く): 760312943

約数列:

[1, 5, 7, 17, 23, 25, 35, 49, 85, 115, 119, 161, 175, 245, 391, 425, 575, 595, 805, 833, 1127, 1225, 1955, 2671, 2737, 2975, 4025, 4165, 5635, 9775, 13355, 13685, 18697, 19159, 20825, 28175, 45407, 61433, 66775, 68425, 93485, 95795, 130879, 227035, 307165, 317849, 430031, 467425, 478975, 654395, 1044361, 1135175, 1535825, 1589245, 2150155, 2224943, 3010217, 3271975, 5221805, 7310527, 7946225, 10750775, 11124715, 15051085, 26109025, 36552635, 51173689, 55623575, 75255425, 182763175, 255868445, 1279342225]

約数ペア:

[(1, 1279342225), (5, 255868445), (7, 182763175), (17, 75255425), (23, 55623575), (25, 51173689), (35, 36552635), (49, 26109025), (85, 15051085), (115, 11124715), (119, 10750775), (161, 7946225), (175, 7310527), (245, 5221805), (391, 3271975), (425, 3010217), (575, 2224943), (595, 2150155), (805, 1589245), (833, 1535825), (1127, 1135175), (1225, 1044361), (1955, 654395), (2671, 478975), (2737, 467425), (2975, 430031), (4025, 317849), (4165, 307165), (5635, 227035), (9775, 130879), (13355, 95795), (13685, 93485), (18697, 68425), (19159, 66775), (20825, 61433), (28175, 45407)]