19882580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43223}}^1$

素因数の和:43255

約数の個数: 24

約数和(自身を含む): 43569792

約数和(自身を除く): 23687212

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43223, 86446, 172892, 216115, 432230, 864460, 994129, 1988258, 3976516, 4970645, 9941290, 19882580]

約数ペア:

[(1, 19882580), (2, 9941290), (4, 4970645), (5, 3976516), (10, 1988258), (20, 994129), (23, 864460), (46, 432230), (92, 216115), (115, 172892), (230, 86446), (460, 43223)]