3940240

素因数分解:

$2^4\times 5^1\times {\mathrm{49253}}^1$

素因数の和:49266

約数の個数: 20

約数和(自身を含む): 9161244

約数和(自身を除く): 5221004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 49253, 98506, 197012, 246265, 394024, 492530, 788048, 985060, 1970120, 3940240]

約数ペア:

[(1, 3940240), (2, 1970120), (4, 985060), (5, 788048), (8, 492530), (10, 394024), (16, 246265), (20, 197012), (40, 98506), (80, 49253)]