18870040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3547}}^1$

素因数の和:3584

約数の個数: 64

約数和(自身を含む): 51091200

約数和(自身を除く): 32221160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3547, 5320, 7094, 14188, 17735, 24829, 28376, 35470, 49658, 67393, 70940, 99316, 124145, 134786, 141880, 198632, 248290, 269572, 336965, 471751, 496580, 539144, 673930, 943502, 993160, 1347860, 1887004, 2358755, 2695720, 3774008, 4717510, 9435020, 18870040]

約数ペア:

[(1, 18870040), (2, 9435020), (4, 4717510), (5, 3774008), (7, 2695720), (8, 2358755), (10, 1887004), (14, 1347860), (19, 993160), (20, 943502), (28, 673930), (35, 539144), (38, 496580), (40, 471751), (56, 336965), (70, 269572), (76, 248290), (95, 198632), (133, 141880), (140, 134786), (152, 124145), (190, 99316), (266, 70940), (280, 67393), (380, 49658), (532, 35470), (665, 28376), (760, 24829), (1064, 17735), (1330, 14188), (2660, 7094), (3547, 5320)]