428672015

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 559016640

約数和(自身を除く): 130344625

約数列:

[1, 5, 19, 41, 95, 157, 205, 701, 779, 785, 2983, 3505, 3895, 6437, 13319, 14915, 28741, 32185, 66595, 110057, 122303, 143705, 546079, 550285, 611515, 2091083, 2730395, 4512337, 10455415, 22561685, 85734403, 428672015]

約数ペア:

[(1, 428672015), (5, 85734403), (19, 22561685), (41, 10455415), (95, 4512337), (157, 2730395), (205, 2091083), (701, 611515), (779, 550285), (785, 546079), (2983, 143705), (3505, 122303), (3895, 110057), (6437, 66595), (13319, 32185), (14915, 28741)]