20329340

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4253}}^1$

素因数の和:4501

約数の個数: 24

約数和(自身を含む): 42880320

約数和(自身を除く): 22550980

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4253, 4780, 8506, 17012, 21265, 42530, 85060, 1016467, 2032934, 4065868, 5082335, 10164670, 20329340]

約数ペア:

[(1, 20329340), (2, 10164670), (4, 5082335), (5, 4065868), (10, 2032934), (20, 1016467), (239, 85060), (478, 42530), (956, 21265), (1195, 17012), (2390, 8506), (4253, 4780)]