20642640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86011}}^1$

素因数の和:86027

約数の個数: 40

約数和(自身を含む): 63992928

約数和(自身を除く): 43350288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86011, 172022, 258033, 344044, 430055, 516066, 688088, 860110, 1032132, 1290165, 1376176, 1720220, 2064264, 2580330, 3440440, 4128528, 5160660, 6880880, 10321320, 20642640]

約数ペア:

[(1, 20642640), (2, 10321320), (3, 6880880), (4, 5160660), (5, 4128528), (6, 3440440), (8, 2580330), (10, 2064264), (12, 1720220), (15, 1376176), (16, 1290165), (20, 1032132), (24, 860110), (30, 688088), (40, 516066), (48, 430055), (60, 344044), (80, 258033), (120, 172022), (240, 86011)]