217410880

素因数分解:

$2^6\times 5^1\times {\mathrm{679409}}^1$

素因数の和:679426

約数の個数: 28

約数和(自身を含む): 517710420

約数和(自身を除く): 300299540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 679409, 1358818, 2717636, 3397045, 5435272, 6794090, 10870544, 13588180, 21741088, 27176360, 43482176, 54352720, 108705440, 217410880]

約数ペア:

[(1, 217410880), (2, 108705440), (4, 54352720), (5, 43482176), (8, 27176360), (10, 21741088), (16, 13588180), (20, 10870544), (32, 6794090), (40, 5435272), (64, 3397045), (80, 2717636), (160, 1358818), (320, 679409)]