20748460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25303}}^1$

素因数の和:25353

約数の個数: 24

約数和(自身を含む): 44636256

約数和(自身を除く): 23887796

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25303, 50606, 101212, 126515, 253030, 506060, 1037423, 2074846, 4149692, 5187115, 10374230, 20748460]

約数ペア:

[(1, 20748460), (2, 10374230), (4, 5187115), (5, 4149692), (10, 2074846), (20, 1037423), (41, 506060), (82, 253030), (164, 126515), (205, 101212), (410, 50606), (820, 25303)]