87920120

素因数分解:

$2^3\times 5^1\times {\mathrm{2198003}}^1$

素因数の和:2198014

約数の個数: 16

約数和(自身を含む): 197820360

約数和(自身を除く): 109900240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2198003, 4396006, 8792012, 10990015, 17584024, 21980030, 43960060, 87920120]

約数ペア:

[(1, 87920120), (2, 43960060), (4, 21980030), (5, 17584024), (8, 10990015), (10, 8792012), (20, 4396006), (40, 2198003)]