12449840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11971}}^1$

素因数の和:11997

約数の個数: 40

約数和(自身を含む): 31175088

約数和(自身を除く): 18725248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 11971, 23942, 47884, 59855, 95768, 119710, 155623, 191536, 239420, 311246, 478840, 622492, 778115, 957680, 1244984, 1556230, 2489968, 3112460, 6224920, 12449840]

約数ペア:

[(1, 12449840), (2, 6224920), (4, 3112460), (5, 2489968), (8, 1556230), (10, 1244984), (13, 957680), (16, 778115), (20, 622492), (26, 478840), (40, 311246), (52, 239420), (65, 191536), (80, 155623), (104, 119710), (130, 95768), (208, 59855), (260, 47884), (520, 23942), (1040, 11971)]