81669020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240203}}^1$

素因数の和:240229

約数の個数: 24

約数和(自身を含む): 181594224

約数和(自身を除く): 99925204

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 240203, 480406, 960812, 1201015, 2402030, 4083451, 4804060, 8166902, 16333804, 20417255, 40834510, 81669020]

約数ペア:

[(1, 81669020), (2, 40834510), (4, 20417255), (5, 16333804), (10, 8166902), (17, 4804060), (20, 4083451), (34, 2402030), (68, 1201015), (85, 960812), (170, 480406), (340, 240203)]