313021310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{638819}}^1$

素因数の和:638840

約数の個数: 24

約数和(自身を含む): 655429320

約数和(自身を除く): 342408010

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 638819, 1277638, 3194095, 4471733, 6388190, 8943466, 22358665, 31302131, 44717330, 62604262, 156510655, 313021310]

約数ペア:

[(1, 313021310), (2, 156510655), (5, 62604262), (7, 44717330), (10, 31302131), (14, 22358665), (35, 8943466), (49, 6388190), (70, 4471733), (98, 3194095), (245, 1277638), (490, 638819)]