1387280

素因数分解:

$2^4\times 5^1\times {\mathrm{17341}}^1$

素因数の和:17354

約数の個数: 20

約数和(自身を含む): 3225612

約数和(自身を除く): 1838332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17341, 34682, 69364, 86705, 138728, 173410, 277456, 346820, 693640, 1387280]

約数ペア:

[(1, 1387280), (2, 693640), (4, 346820), (5, 277456), (8, 173410), (10, 138728), (16, 86705), (20, 69364), (40, 34682), (80, 17341)]