65720120

素因数分解:

$2^3\times 5^1\times {\mathrm{1643003}}^1$

素因数の和:1643014

約数の個数: 16

約数和(自身を含む): 147870360

約数和(自身を除く): 82150240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1643003, 3286006, 6572012, 8215015, 13144024, 16430030, 32860060, 65720120]

約数ペア:

[(1, 65720120), (2, 32860060), (4, 16430030), (5, 13144024), (8, 8215015), (10, 6572012), (20, 3286006), (40, 1643003)]