72208120

素因数分解:

$2^3\times 5^1\times {\mathrm{1805203}}^1$

素因数の和:1805214

約数の個数: 16

約数和(自身を含む): 162468360

約数和(自身を除く): 90260240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1805203, 3610406, 7220812, 9026015, 14441624, 18052030, 36104060, 72208120]

約数ペア:

[(1, 72208120), (2, 36104060), (4, 18052030), (5, 14441624), (8, 9026015), (10, 7220812), (20, 3610406), (40, 1805203)]