156870020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3881}}^1$

素因数の和:3980

約数の個数: 48

約数和(自身を含む): 344348928

約数和(自身を除く): 187478908

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 2021, 3881, 4042, 7762, 8084, 10105, 15524, 19405, 20210, 38810, 40420, 77620, 166883, 182407, 333766, 364814, 667532, 729628, 834415, 912035, 1668830, 1824070, 3337660, 3648140, 7843501, 15687002, 31374004, 39217505, 78435010, 156870020]

約数ペア:

[(1, 156870020), (2, 78435010), (4, 39217505), (5, 31374004), (10, 15687002), (20, 7843501), (43, 3648140), (47, 3337660), (86, 1824070), (94, 1668830), (172, 912035), (188, 834415), (215, 729628), (235, 667532), (430, 364814), (470, 333766), (860, 182407), (940, 166883), (2021, 77620), (3881, 40420), (4042, 38810), (7762, 20210), (8084, 19405), (10105, 15524)]