19627400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7549}}^1$

素因数の和:7578

約数の個数: 48

約数和(自身を含む): 49150500

約数和(自身を除く): 29523100

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7549, 15098, 30196, 37745, 60392, 75490, 98137, 150980, 188725, 196274, 301960, 377450, 392548, 490685, 754900, 785096, 981370, 1509800, 1962740, 2453425, 3925480, 4906850, 9813700, 19627400]

約数ペア:

[(1, 19627400), (2, 9813700), (4, 4906850), (5, 3925480), (8, 2453425), (10, 1962740), (13, 1509800), (20, 981370), (25, 785096), (26, 754900), (40, 490685), (50, 392548), (52, 377450), (65, 301960), (100, 196274), (104, 188725), (130, 150980), (200, 98137), (260, 75490), (325, 60392), (520, 37745), (650, 30196), (1300, 15098), (2600, 7549)]