664286060

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{72679}}^1$

素因数の和:73145

約数の個数: 24

約数和(自身を含む): 1398072480

約数和(自身を除く): 733786420

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 4570, 9140, 72679, 145358, 290716, 363395, 726790, 1453580, 33214303, 66428606, 132857212, 166071515, 332143030, 664286060]

約数ペア:

[(1, 664286060), (2, 332143030), (4, 166071515), (5, 132857212), (10, 66428606), (20, 33214303), (457, 1453580), (914, 726790), (1828, 363395), (2285, 290716), (4570, 145358), (9140, 72679)]