18710860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133649}}^1$

素因数の和:133665

約数の個数: 24

約数和(自身を含む): 44906400

約数和(自身を除く): 26195540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133649, 267298, 534596, 668245, 935543, 1336490, 1871086, 2672980, 3742172, 4677715, 9355430, 18710860]

約数ペア:

[(1, 18710860), (2, 9355430), (4, 4677715), (5, 3742172), (7, 2672980), (10, 1871086), (14, 1336490), (20, 935543), (28, 668245), (35, 534596), (70, 267298), (140, 133649)]