171772420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{505213}}^1$

素因数の和:505239

約数の個数: 24

約数和(自身を含む): 381941784

約数和(自身を除く): 210169364

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 505213, 1010426, 2020852, 2526065, 5052130, 8588621, 10104260, 17177242, 34354484, 42943105, 85886210, 171772420]

約数ペア:

[(1, 171772420), (2, 85886210), (4, 42943105), (5, 34354484), (10, 17177242), (17, 10104260), (20, 8588621), (34, 5052130), (68, 2526065), (85, 2020852), (170, 1010426), (340, 505213)]