39505820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 86220288

約数和(自身を除く): 46714468

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 647, 710, 860, 1294, 1420, 2588, 3053, 3235, 6106, 6470, 12212, 12940, 15265, 27821, 30530, 45937, 55642, 61060, 91874, 111284, 139105, 183748, 229685, 278210, 459370, 556420, 918740, 1975291, 3950582, 7901164, 9876455, 19752910, 39505820]

約数ペア:

[(1, 39505820), (2, 19752910), (4, 9876455), (5, 7901164), (10, 3950582), (20, 1975291), (43, 918740), (71, 556420), (86, 459370), (142, 278210), (172, 229685), (215, 183748), (284, 139105), (355, 111284), (430, 91874), (647, 61060), (710, 55642), (860, 45937), (1294, 30530), (1420, 27821), (2588, 15265), (3053, 12940), (3235, 12212), (6106, 6470)]