251551404

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1549}}^1$

素因数の和:1919

約数の個数: 72

約数和(自身を含む): 687195600

約数和(自身を除く): 435644196

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 347, 468, 694, 1041, 1388, 1549, 2082, 3098, 3123, 4164, 4511, 4647, 6196, 6246, 9022, 9294, 12492, 13533, 13941, 18044, 18588, 20137, 27066, 27882, 40274, 40599, 54132, 55764, 60411, 80548, 81198, 120822, 162396, 181233, 241644, 362466, 537503, 724932, 1075006, 1612509, 2150012, 3225018, 4837527, 6450036, 6987539, 9675054, 13975078, 19350108, 20962617, 27950156, 41925234, 62887851, 83850468, 125775702, 251551404]

約数ペア:

[(1, 251551404), (2, 125775702), (3, 83850468), (4, 62887851), (6, 41925234), (9, 27950156), (12, 20962617), (13, 19350108), (18, 13975078), (26, 9675054), (36, 6987539), (39, 6450036), (52, 4837527), (78, 3225018), (117, 2150012), (156, 1612509), (234, 1075006), (347, 724932), (468, 537503), (694, 362466), (1041, 241644), (1388, 181233), (1549, 162396), (2082, 120822), (3098, 81198), (3123, 80548), (4164, 60411), (4511, 55764), (4647, 54132), (6196, 40599), (6246, 40274), (9022, 27882), (9294, 27066), (12492, 20137), (13533, 18588), (13941, 18044)]