209717340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{499327}}^1$

素因数の和:499346

約数の個数: 48

約数和(自身を含む): 671096832

約数和(自身を除く): 461379492

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, 499327, 998654, 1497981, 1997308, 2496635, 2995962, 3495289, 4993270, 5991924, 6990578, 7489905, 9986540, 10485867, 13981156, 14979810, 17476445, 20971734, 29959620, 34952890, 41943468, 52429335, 69905780, 104858670, 209717340]

約数ペア:

[(1, 209717340), (2, 104858670), (3, 69905780), (4, 52429335), (5, 41943468), (6, 34952890), (7, 29959620), (10, 20971734), (12, 17476445), (14, 14979810), (15, 13981156), (20, 10485867), (21, 9986540), (28, 7489905), (30, 6990578), (35, 5991924), (42, 4993270), (60, 3495289), (70, 2995962), (84, 2496635), (105, 1997308), (140, 1497981), (210, 998654), (420, 499327)]