3439990

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{821}}^1$

素因数の和:1247

約数の個数: 16

約数和(自身を含む): 6214320

約数和(自身を除く): 2774330

約数列:

[1, 2, 5, 10, 419, 821, 838, 1642, 2095, 4105, 4190, 8210, 343999, 687998, 1719995, 3439990]

約数ペア:

[(1, 3439990), (2, 1719995), (5, 687998), (10, 343999), (419, 8210), (821, 4190), (838, 4105), (1642, 2095)]