19544240

素因数分解:

$2^4\times 5^1\times {\mathrm{244303}}^1$

素因数の和:244316

約数の個数: 20

約数和(自身を含む): 45440544

約数和(自身を除く): 25896304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244303, 488606, 977212, 1221515, 1954424, 2443030, 3908848, 4886060, 9772120, 19544240]

約数ペア:

[(1, 19544240), (2, 9772120), (4, 4886060), (5, 3908848), (8, 2443030), (10, 1954424), (16, 1221515), (20, 977212), (40, 488606), (80, 244303)]