78840572

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{857}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 140059920

約数和(自身を除く): 61219348

約数列:

[1, 2, 4, 109, 211, 218, 422, 436, 844, 857, 1714, 3428, 22999, 45998, 91996, 93413, 180827, 186826, 361654, 373652, 723308, 19710143, 39420286, 78840572]

約数ペア:

[(1, 78840572), (2, 39420286), (4, 19710143), (109, 723308), (211, 373652), (218, 361654), (422, 186826), (436, 180827), (844, 93413), (857, 91996), (1714, 45998), (3428, 22999)]