261799571888

素因数分解:

$2^4\times {\mathrm{457}}^1\times {\mathrm{1409}}^1\times {\mathrm{25411}}^1$

素因数の和:27285

約数の個数: 40

約数和(自身を含む): 508727402160

約数和(自身を除く): 246927830272

約数列:

[1, 2, 4, 8, 16, 457, 914, 1409, 1828, 2818, 3656, 5636, 7312, 11272, 22544, 25411, 50822, 101644, 203288, 406576, 643913, 1287826, 2575652, 5151304, 10302608, 11612827, 23225654, 35804099, 46451308, 71608198, 92902616, 143216396, 185805232, 286432792, 572865584, 16362473243, 32724946486, 65449892972, 130899785944, 261799571888]

約数ペア:

[(1, 261799571888), (2, 130899785944), (4, 65449892972), (8, 32724946486), (16, 16362473243), (457, 572865584), (914, 286432792), (1409, 185805232), (1828, 143216396), (2818, 92902616), (3656, 71608198), (5636, 46451308), (7312, 35804099), (11272, 23225654), (22544, 11612827), (25411, 10302608), (50822, 5151304), (101644, 2575652), (203288, 1287826), (406576, 643913)]