25840240

素因数分解:

$2^4\times 5^1\times {\mathrm{323003}}^1$

素因数の和:323016

約数の個数: 20

約数和(自身を含む): 60078744

約数和(自身を除く): 34238504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323003, 646006, 1292012, 1615015, 2584024, 3230030, 5168048, 6460060, 12920120, 25840240]

約数ペア:

[(1, 25840240), (2, 12920120), (4, 6460060), (5, 5168048), (8, 3230030), (10, 2584024), (16, 1615015), (20, 1292012), (40, 646006), (80, 323003)]