81570860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582649}}^1$

素因数の和:582665

約数の個数: 24

約数和(自身を含む): 195770400

約数和(自身を除く): 114199540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582649, 1165298, 2330596, 2913245, 4078543, 5826490, 8157086, 11652980, 16314172, 20392715, 40785430, 81570860]

約数ペア:

[(1, 81570860), (2, 40785430), (4, 20392715), (5, 16314172), (7, 11652980), (10, 8157086), (14, 5826490), (20, 4078543), (28, 2913245), (35, 2330596), (70, 1165298), (140, 582649)]