74840720

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2131}}^1$

素因数の和:2583

約数の個数: 40

約数和(自身を含む): 174482880

約数和(自身を除く): 99642160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2131, 2195, 3512, 4262, 4390, 7024, 8524, 8780, 10655, 17048, 17560, 21310, 34096, 35120, 42620, 85240, 170480, 935509, 1871018, 3742036, 4677545, 7484072, 9355090, 14968144, 18710180, 37420360, 74840720]

約数ペア:

[(1, 74840720), (2, 37420360), (4, 18710180), (5, 14968144), (8, 9355090), (10, 7484072), (16, 4677545), (20, 3742036), (40, 1871018), (80, 935509), (439, 170480), (878, 85240), (1756, 42620), (2131, 35120), (2195, 34096), (3512, 21310), (4262, 17560), (4390, 17048), (7024, 10655), (8524, 8780)]