133884280

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{8431}}^1$

素因数の和:8839

約数の個数: 32

約数和(自身を含む): 302034240

約数和(自身を除く): 168149960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 8431, 15880, 16862, 33724, 42155, 67448, 84310, 168620, 337240, 3347107, 6694214, 13388428, 16735535, 26776856, 33471070, 66942140, 133884280]

約数ペア:

[(1, 133884280), (2, 66942140), (4, 33471070), (5, 26776856), (8, 16735535), (10, 13388428), (20, 6694214), (40, 3347107), (397, 337240), (794, 168620), (1588, 84310), (1985, 67448), (3176, 42155), (3970, 33724), (7940, 16862), (8431, 15880)]