84278860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{247879}}^1$

素因数の和:247905

約数の個数: 24

約数和(自身を含む): 187397280

約数和(自身を除く): 103118420

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 247879, 495758, 991516, 1239395, 2478790, 4213943, 4957580, 8427886, 16855772, 21069715, 42139430, 84278860]

約数ペア:

[(1, 84278860), (2, 42139430), (4, 21069715), (5, 16855772), (10, 8427886), (17, 4957580), (20, 4213943), (34, 2478790), (68, 1239395), (85, 991516), (170, 495758), (340, 247879)]