12936703940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{320057}}^1$

素因数の和:320156

約数の個数: 48

約数和(自身を含む): 28390424832

約数和(自身を除く): 15453720892

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 2021, 4042, 8084, 10105, 20210, 40420, 320057, 640114, 1280228, 1600285, 3200570, 6401140, 13762451, 15042679, 27524902, 30085358, 55049804, 60170716, 68812255, 75213395, 137624510, 150426790, 275249020, 300853580, 646835197, 1293670394, 2587340788, 3234175985, 6468351970, 12936703940]

約数ペア:

[(1, 12936703940), (2, 6468351970), (4, 3234175985), (5, 2587340788), (10, 1293670394), (20, 646835197), (43, 300853580), (47, 275249020), (86, 150426790), (94, 137624510), (172, 75213395), (188, 68812255), (215, 60170716), (235, 55049804), (430, 30085358), (470, 27524902), (860, 15042679), (940, 13762451), (2021, 6401140), (4042, 3200570), (8084, 1600285), (10105, 1280228), (20210, 640114), (40420, 320057)]