20553960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24469}}^1$

素因数の和:24490

約数の個数: 64

約数和(自身を含む): 70473600

約数和(自身を除く): 49919640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24469, 48938, 73407, 97876, 122345, 146814, 171283, 195752, 244690, 293628, 342566, 367035, 489380, 513849, 587256, 685132, 734070, 856415, 978760, 1027698, 1370264, 1468140, 1712830, 2055396, 2569245, 2936280, 3425660, 4110792, 5138490, 6851320, 10276980, 20553960]

約数ペア:

[(1, 20553960), (2, 10276980), (3, 6851320), (4, 5138490), (5, 4110792), (6, 3425660), (7, 2936280), (8, 2569245), (10, 2055396), (12, 1712830), (14, 1468140), (15, 1370264), (20, 1027698), (21, 978760), (24, 856415), (28, 734070), (30, 685132), (35, 587256), (40, 513849), (42, 489380), (56, 367035), (60, 342566), (70, 293628), (84, 244690), (105, 195752), (120, 171283), (140, 146814), (168, 122345), (210, 97876), (280, 73407), (420, 48938), (840, 24469)]