7961000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 19656000

約数和(自身を除く): 11695000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 419, 475, 500, 760, 838, 950, 1000, 1676, 1900, 2095, 2375, 3352, 3800, 4190, 4750, 7961, 8380, 9500, 10475, 15922, 16760, 19000, 20950, 31844, 39805, 41900, 52375, 63688, 79610, 83800, 104750, 159220, 199025, 209500, 318440, 398050, 419000, 796100, 995125, 1592200, 1990250, 3980500, 7961000]

約数ペア:

[(1, 7961000), (2, 3980500), (4, 1990250), (5, 1592200), (8, 995125), (10, 796100), (19, 419000), (20, 398050), (25, 318440), (38, 209500), (40, 199025), (50, 159220), (76, 104750), (95, 83800), (100, 79610), (125, 63688), (152, 52375), (190, 41900), (200, 39805), (250, 31844), (380, 20950), (419, 19000), (475, 16760), (500, 15922), (760, 10475), (838, 9500), (950, 8380), (1000, 7961), (1676, 4750), (1900, 4190), (2095, 3800), (2375, 3352)]