78920216

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 150660000

約数和(自身を除く): 71739784

約数列:

[1, 2, 4, 8, 89, 178, 199, 356, 398, 557, 712, 796, 1114, 1592, 2228, 4456, 17711, 35422, 49573, 70844, 99146, 110843, 141688, 198292, 221686, 396584, 443372, 886744, 9865027, 19730054, 39460108, 78920216]

約数ペア:

[(1, 78920216), (2, 39460108), (4, 19730054), (8, 9865027), (89, 886744), (178, 443372), (199, 396584), (356, 221686), (398, 198292), (557, 141688), (712, 110843), (796, 99146), (1114, 70844), (1592, 49573), (2228, 35422), (4456, 17711)]