19307820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{45971}}^1$

素因数の和:45990

約数の個数: 48

約数和(自身を含む): 61786368

約数和(自身を除く): 42478548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 45971, 91942, 137913, 183884, 229855, 275826, 321797, 459710, 551652, 643594, 689565, 919420, 965391, 1287188, 1379130, 1608985, 1930782, 2758260, 3217970, 3861564, 4826955, 6435940, 9653910, 19307820]

約数ペア:

[(1, 19307820), (2, 9653910), (3, 6435940), (4, 4826955), (5, 3861564), (6, 3217970), (7, 2758260), (10, 1930782), (12, 1608985), (14, 1379130), (15, 1287188), (20, 965391), (21, 919420), (28, 689565), (30, 643594), (35, 551652), (42, 459710), (60, 321797), (70, 275826), (84, 229855), (105, 183884), (140, 137913), (210, 91942), (420, 45971)]