7891000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:641

約数の個数: 64

約数和(自身を含む): 19918080

約数和(自身を除く): 12027080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 607, 650, 1000, 1214, 1300, 1625, 2428, 2600, 3035, 3250, 4856, 6070, 6500, 7891, 12140, 13000, 15175, 15782, 24280, 30350, 31564, 39455, 60700, 63128, 75875, 78910, 121400, 151750, 157820, 197275, 303500, 315640, 394550, 607000, 789100, 986375, 1578200, 1972750, 3945500, 7891000]

約数ペア:

[(1, 7891000), (2, 3945500), (4, 1972750), (5, 1578200), (8, 986375), (10, 789100), (13, 607000), (20, 394550), (25, 315640), (26, 303500), (40, 197275), (50, 157820), (52, 151750), (65, 121400), (100, 78910), (104, 75875), (125, 63128), (130, 60700), (200, 39455), (250, 31564), (260, 30350), (325, 24280), (500, 15782), (520, 15175), (607, 13000), (650, 12140), (1000, 7891), (1214, 6500), (1300, 6070), (1625, 4856), (2428, 3250), (2600, 3035)]