39994640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71419}}^1$

素因数の和:71439

約数の個数: 40

約数和(自身を含む): 106272960

約数和(自身を除く): 66278320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 71419, 142838, 285676, 357095, 499933, 571352, 714190, 999866, 1142704, 1428380, 1999732, 2499665, 2856760, 3999464, 4999330, 5713520, 7998928, 9998660, 19997320, 39994640]

約数ペア:

[(1, 39994640), (2, 19997320), (4, 9998660), (5, 7998928), (7, 5713520), (8, 4999330), (10, 3999464), (14, 2856760), (16, 2499665), (20, 1999732), (28, 1428380), (35, 1142704), (40, 999866), (56, 714190), (70, 571352), (80, 499933), (112, 357095), (140, 285676), (280, 142838), (560, 71419)]