3999040

素因数分解:

$2^6\times 5^1\times {\mathrm{12497}}^1$

素因数の和:12514

約数の個数: 28

約数和(自身を含む): 9523476

約数和(自身を除く): 5524436

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 12497, 24994, 49988, 62485, 99976, 124970, 199952, 249940, 399904, 499880, 799808, 999760, 1999520, 3999040]

約数ペア:

[(1, 3999040), (2, 1999520), (4, 999760), (5, 799808), (8, 499880), (10, 399904), (16, 249940), (20, 199952), (32, 124970), (40, 99976), (64, 62485), (80, 49988), (160, 24994), (320, 12497)]