12953840

素因数分解:

$2^4\times 5^1\times {\mathrm{161923}}^1$

素因数の和:161936

約数の個数: 20

約数和(自身を含む): 30117864

約数和(自身を除く): 17164024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161923, 323846, 647692, 809615, 1295384, 1619230, 2590768, 3238460, 6476920, 12953840]

約数ペア:

[(1, 12953840), (2, 6476920), (4, 3238460), (5, 2590768), (8, 1619230), (10, 1295384), (16, 809615), (20, 647692), (40, 323846), (80, 161923)]