339511240

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{20161}}^1$

素因数の和:20593

約数の個数: 32

約数和(自身を含む): 765752760

約数和(自身を除く): 426241520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 8420, 16840, 20161, 40322, 80644, 100805, 161288, 201610, 403220, 806440, 8487781, 16975562, 33951124, 42438905, 67902248, 84877810, 169755620, 339511240]

約数ペア:

[(1, 339511240), (2, 169755620), (4, 84877810), (5, 67902248), (8, 42438905), (10, 33951124), (20, 16975562), (40, 8487781), (421, 806440), (842, 403220), (1684, 201610), (2105, 161288), (3368, 100805), (4210, 80644), (8420, 40322), (16840, 20161)]