281089844

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 570810240

約数和(自身を除く): 289720396

約数列:

[1, 2, 4, 7, 14, 28, 131, 197, 262, 389, 394, 524, 778, 788, 917, 1379, 1556, 1834, 2723, 2758, 3668, 5446, 5516, 10892, 25807, 50959, 51614, 76633, 101918, 103228, 153266, 180649, 203836, 306532, 356713, 361298, 536431, 713426, 722596, 1072862, 1426852, 2145724, 10038923, 20077846, 40155692, 70272461, 140544922, 281089844]

約数ペア:

[(1, 281089844), (2, 140544922), (4, 70272461), (7, 40155692), (14, 20077846), (28, 10038923), (131, 2145724), (197, 1426852), (262, 1072862), (389, 722596), (394, 713426), (524, 536431), (778, 361298), (788, 356713), (917, 306532), (1379, 203836), (1556, 180649), (1834, 153266), (2723, 103228), (2758, 101918), (3668, 76633), (5446, 51614), (5516, 50959), (10892, 25807)]