67376720

素因数分解:

$2^4\times 5^1\times {\mathrm{842209}}^1$

素因数の和:842222

約数の個数: 20

約数和(自身を含む): 156651060

約数和(自身を除く): 89274340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 842209, 1684418, 3368836, 4211045, 6737672, 8422090, 13475344, 16844180, 33688360, 67376720]

約数ペア:

[(1, 67376720), (2, 33688360), (4, 16844180), (5, 13475344), (8, 8422090), (10, 6737672), (16, 4211045), (20, 3368836), (40, 1684418), (80, 842209)]