28178800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5419}}^1$

素因数の和:5450

約数の個数: 60

約数和(自身を含む): 72920680

約数和(自身を除く): 44741880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 5419, 10838, 21676, 27095, 43352, 54190, 70447, 86704, 108380, 135475, 140894, 216760, 270950, 281788, 352235, 433520, 541900, 563576, 704470, 1083800, 1127152, 1408940, 1761175, 2167600, 2817880, 3522350, 5635760, 7044700, 14089400, 28178800]

約数ペア:

[(1, 28178800), (2, 14089400), (4, 7044700), (5, 5635760), (8, 3522350), (10, 2817880), (13, 2167600), (16, 1761175), (20, 1408940), (25, 1127152), (26, 1083800), (40, 704470), (50, 563576), (52, 541900), (65, 433520), (80, 352235), (100, 281788), (104, 270950), (130, 216760), (200, 140894), (208, 135475), (260, 108380), (325, 86704), (400, 70447), (520, 54190), (650, 43352), (1040, 27095), (1300, 21676), (2600, 10838), (5200, 5419)]