144420880

素因数分解:

$2^4\times 5^1\times {\mathrm{1805261}}^1$

素因数の和:1805274

約数の個数: 20

約数和(自身を含む): 335778732

約数和(自身を除く): 191357852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1805261, 3610522, 7221044, 9026305, 14442088, 18052610, 28884176, 36105220, 72210440, 144420880]

約数ペア:

[(1, 144420880), (2, 72210440), (4, 36105220), (5, 28884176), (8, 18052610), (10, 14442088), (16, 9026305), (20, 7221044), (40, 3610522), (80, 1805261)]