20006420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{142903}}^1$

素因数の和:142919

約数の個数: 24

約数和(自身を含む): 48015744

約数和(自身を除く): 28009324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 142903, 285806, 571612, 714515, 1000321, 1429030, 2000642, 2858060, 4001284, 5001605, 10003210, 20006420]

約数ペア:

[(1, 20006420), (2, 10003210), (4, 5001605), (5, 4001284), (7, 2858060), (10, 2000642), (14, 1429030), (20, 1000321), (28, 714515), (35, 571612), (70, 285806), (140, 142903)]