1386140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9901}}^1$

素因数の和:9917

約数の個数: 24

約数和(自身を含む): 3327072

約数和(自身を除く): 1940932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9901, 19802, 39604, 49505, 69307, 99010, 138614, 198020, 277228, 346535, 693070, 1386140]

約数ペア:

[(1, 1386140), (2, 693070), (4, 346535), (5, 277228), (7, 198020), (10, 138614), (14, 99010), (20, 69307), (28, 49505), (35, 39604), (70, 19802), (140, 9901)]