8207900

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{389}}^1$

素因数の和:614

約数の個数: 36

約数和(自身を含む): 17941560

約数和(自身を除く): 9733660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 389, 422, 778, 844, 1055, 1556, 1945, 2110, 3890, 4220, 5275, 7780, 9725, 10550, 19450, 21100, 38900, 82079, 164158, 328316, 410395, 820790, 1641580, 2051975, 4103950, 8207900]

約数ペア:

[(1, 8207900), (2, 4103950), (4, 2051975), (5, 1641580), (10, 820790), (20, 410395), (25, 328316), (50, 164158), (100, 82079), (211, 38900), (389, 21100), (422, 19450), (778, 10550), (844, 9725), (1055, 7780), (1556, 5275), (1945, 4220), (2110, 3890)]