19753840

素因数分解:

$2^4\times 5^1\times {\mathrm{246923}}^1$

素因数の和:246936

約数の個数: 20

約数和(自身を含む): 45927864

約数和(自身を除く): 26174024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246923, 493846, 987692, 1234615, 1975384, 2469230, 3950768, 4938460, 9876920, 19753840]

約数ペア:

[(1, 19753840), (2, 9876920), (4, 4938460), (5, 3950768), (8, 2469230), (10, 1975384), (16, 1234615), (20, 987692), (40, 493846), (80, 246923)]