1685240

素因数分解:

$2^3\times 5^1\times {\mathrm{42131}}^1$

素因数の和:42142

約数の個数: 16

約数和(自身を含む): 3791880

約数和(自身を除く): 2106640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 42131, 84262, 168524, 210655, 337048, 421310, 842620, 1685240]

約数ペア:

[(1, 1685240), (2, 842620), (4, 421310), (5, 337048), (8, 210655), (10, 168524), (20, 84262), (40, 42131)]