19400550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9949}}^1$

素因数の和:9977

約数の個数: 48

約数和(自身を含む): 51819600

約数和(自身を除く): 32419050

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9949, 19898, 29847, 49745, 59694, 99490, 129337, 149235, 248725, 258674, 298470, 388011, 497450, 646685, 746175, 776022, 1293370, 1492350, 1940055, 3233425, 3880110, 6466850, 9700275, 19400550]

約数ペア:

[(1, 19400550), (2, 9700275), (3, 6466850), (5, 3880110), (6, 3233425), (10, 1940055), (13, 1492350), (15, 1293370), (25, 776022), (26, 746175), (30, 646685), (39, 497450), (50, 388011), (65, 298470), (75, 258674), (78, 248725), (130, 149235), (150, 129337), (195, 99490), (325, 59694), (390, 49745), (650, 29847), (975, 19898), (1950, 9949)]