31217290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{547}}^1$

素因数の和:1006

約数の個数: 32

約数和(自身を含む): 60762240

約数和(自身を除く): 29544950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 439, 547, 878, 1094, 2195, 2735, 4390, 5470, 5707, 7111, 11414, 14222, 28535, 35555, 57070, 71110, 240133, 480266, 1200665, 2401330, 3121729, 6243458, 15608645, 31217290]

約数ペア:

[(1, 31217290), (2, 15608645), (5, 6243458), (10, 3121729), (13, 2401330), (26, 1200665), (65, 480266), (130, 240133), (439, 71110), (547, 57070), (878, 35555), (1094, 28535), (2195, 14222), (2735, 11414), (4390, 7111), (5470, 5707)]