1638140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11701}}^1$

素因数の和:11717

約数の個数: 24

約数和(自身を含む): 3931872

約数和(自身を除く): 2293732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 11701, 23402, 46804, 58505, 81907, 117010, 163814, 234020, 327628, 409535, 819070, 1638140]

約数ペア:

[(1, 1638140), (2, 819070), (4, 409535), (5, 327628), (7, 234020), (10, 163814), (14, 117010), (20, 81907), (28, 58505), (35, 46804), (70, 23402), (140, 11701)]