206871420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{492551}}^1$

素因数の和:492570

約数の個数: 48

約数和(自身を含む): 661989888

約数和(自身を除く): 455118468

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, 492551, 985102, 1477653, 1970204, 2462755, 2955306, 3447857, 4925510, 5910612, 6895714, 7388265, 9851020, 10343571, 13791428, 14776530, 17239285, 20687142, 29553060, 34478570, 41374284, 51717855, 68957140, 103435710, 206871420]

約数ペア:

[(1, 206871420), (2, 103435710), (3, 68957140), (4, 51717855), (5, 41374284), (6, 34478570), (7, 29553060), (10, 20687142), (12, 17239285), (14, 14776530), (15, 13791428), (20, 10343571), (21, 9851020), (28, 7388265), (30, 6895714), (35, 5910612), (42, 4925510), (60, 3447857), (70, 2955306), (84, 2462755), (105, 1970204), (140, 1477653), (210, 985102), (420, 492551)]