12400240

素因数分解:

$2^4\times 5^1\times {\mathrm{155003}}^1$

素因数の和:155016

約数の個数: 20

約数和(自身を含む): 28830744

約数和(自身を除く): 16430504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 155003, 310006, 620012, 775015, 1240024, 1550030, 2480048, 3100060, 6200120, 12400240]

約数ペア:

[(1, 12400240), (2, 6200120), (4, 3100060), (5, 2480048), (8, 1550030), (10, 1240024), (16, 775015), (20, 620012), (40, 310006), (80, 155003)]