217960085

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{30677}}^1$

素因数の和:30725

約数の個数: 24

約数和(自身を含む): 314756280

約数和(自身を除く): 96796195

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 7105, 30677, 153385, 214739, 889633, 1073695, 1503173, 4448165, 6227431, 7515865, 31137155, 43592017, 217960085]

約数ペア:

[(1, 217960085), (5, 43592017), (7, 31137155), (29, 7515865), (35, 6227431), (49, 4448165), (145, 1503173), (203, 1073695), (245, 889633), (1015, 214739), (1421, 153385), (7105, 30677)]