209927340

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{166609}}^1$

素因数の和:166631

約数の個数: 72

約数和(自身を含む): 727752480

約数和(自身を除く): 517825140

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 166609, 333218, 499827, 666436, 833045, 999654, 1166263, 1499481, 1666090, 1999308, 2332526, 2499135, 2998962, 3332180, 3498789, 4665052, 4998270, 5831315, 5997924, 6997578, 7497405, 9996540, 10496367, 11662630, 13995156, 14994810, 17493945, 20992734, 23325260, 29989620, 34987890, 41985468, 52481835, 69975780, 104963670, 209927340]

約数ペア:

[(1, 209927340), (2, 104963670), (3, 69975780), (4, 52481835), (5, 41985468), (6, 34987890), (7, 29989620), (9, 23325260), (10, 20992734), (12, 17493945), (14, 14994810), (15, 13995156), (18, 11662630), (20, 10496367), (21, 9996540), (28, 7497405), (30, 6997578), (35, 5997924), (36, 5831315), (42, 4998270), (45, 4665052), (60, 3498789), (63, 3332180), (70, 2998962), (84, 2499135), (90, 2332526), (105, 1999308), (126, 1666090), (140, 1499481), (180, 1166263), (210, 999654), (252, 833045), (315, 666436), (420, 499827), (630, 333218), (1260, 166609)]