20188280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72101}}^1$

素因数の和:72119

約数の個数: 32

約数和(自身を含む): 51913440

約数和(自身を除く): 31725160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72101, 144202, 288404, 360505, 504707, 576808, 721010, 1009414, 1442020, 2018828, 2523535, 2884040, 4037656, 5047070, 10094140, 20188280]

約数ペア:

[(1, 20188280), (2, 10094140), (4, 5047070), (5, 4037656), (7, 2884040), (8, 2523535), (10, 2018828), (14, 1442020), (20, 1009414), (28, 721010), (35, 576808), (40, 504707), (56, 360505), (70, 288404), (140, 144202), (280, 72101)]