420435960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{500519}}^1$

素因数の和:500540

約数の個数: 64

約数和(自身を含む): 1441497600

約数和(自身を除く): 1021061640

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, 500519, 1001038, 1501557, 2002076, 2502595, 3003114, 3503633, 4004152, 5005190, 6006228, 7007266, 7507785, 10010380, 10510899, 12012456, 14014532, 15015570, 17518165, 20020760, 21021798, 28029064, 30031140, 35036330, 42043596, 52554495, 60062280, 70072660, 84087192, 105108990, 140145320, 210217980, 420435960]

約数ペア:

[(1, 420435960), (2, 210217980), (3, 140145320), (4, 105108990), (5, 84087192), (6, 70072660), (7, 60062280), (8, 52554495), (10, 42043596), (12, 35036330), (14, 30031140), (15, 28029064), (20, 21021798), (21, 20020760), (24, 17518165), (28, 15015570), (30, 14014532), (35, 12012456), (40, 10510899), (42, 10010380), (56, 7507785), (60, 7007266), (70, 6006228), (84, 5005190), (105, 4004152), (120, 3503633), (140, 3003114), (168, 2502595), (210, 2002076), (280, 1501557), (420, 1001038), (840, 500519)]