287420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2053}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 690144

約数和(自身を除く): 402724

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2053, 4106, 8212, 10265, 14371, 20530, 28742, 41060, 57484, 71855, 143710, 287420]

約数ペア:

[(1, 287420), (2, 143710), (4, 71855), (5, 57484), (7, 41060), (10, 28742), (14, 20530), (20, 14371), (28, 10265), (35, 8212), (70, 4106), (140, 2053)]