1289003840

素因数分解:

$2^6\times 5^1\times {\mathrm{4028137}}^1$

素因数の和:4028154

約数の個数: 28

約数和(自身を含む): 3069441156

約数和(自身を除く): 1780437316

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4028137, 8056274, 16112548, 20140685, 32225096, 40281370, 64450192, 80562740, 128900384, 161125480, 257800768, 322250960, 644501920, 1289003840]

約数ペア:

[(1, 1289003840), (2, 644501920), (4, 322250960), (5, 257800768), (8, 161125480), (10, 128900384), (16, 80562740), (20, 64450192), (32, 40281370), (40, 32225096), (64, 20140685), (80, 16112548), (160, 8056274), (320, 4028137)]