788019860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{7691}}^1$

素因数の和:7856

約数の個数: 48

約数和(自身を含む): 1705777920

約数和(自身を除く): 917758060

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 109, 188, 218, 235, 436, 470, 545, 940, 1090, 2180, 5123, 7691, 10246, 15382, 20492, 25615, 30764, 38455, 51230, 76910, 102460, 153820, 361477, 722954, 838319, 1445908, 1676638, 1807385, 3353276, 3614770, 4191595, 7229540, 8383190, 16766380, 39400993, 78801986, 157603972, 197004965, 394009930, 788019860]

約数ペア:

[(1, 788019860), (2, 394009930), (4, 197004965), (5, 157603972), (10, 78801986), (20, 39400993), (47, 16766380), (94, 8383190), (109, 7229540), (188, 4191595), (218, 3614770), (235, 3353276), (436, 1807385), (470, 1676638), (545, 1445908), (940, 838319), (1090, 722954), (2180, 361477), (5123, 153820), (7691, 102460), (10246, 76910), (15382, 51230), (20492, 38455), (25615, 30764)]