78849040

素因数分解:

$2^4\times 5^1\times {\mathrm{985613}}^1$

素因数の和:985626

約数の個数: 20

約数和(自身を含む): 183324204

約数和(自身を除く): 104475164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 985613, 1971226, 3942452, 4928065, 7884904, 9856130, 15769808, 19712260, 39424520, 78849040]

約数ペア:

[(1, 78849040), (2, 39424520), (4, 19712260), (5, 15769808), (8, 9856130), (10, 7884904), (16, 4928065), (20, 3942452), (40, 1971226), (80, 985613)]