115449020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{821}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 248572800

約数和(自身を除く): 133123780

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 316, 356, 395, 445, 790, 821, 890, 1580, 1642, 1780, 3284, 4105, 7031, 8210, 14062, 16420, 28124, 35155, 64859, 70310, 73069, 129718, 140620, 146138, 259436, 292276, 324295, 365345, 648590, 730690, 1297180, 1461380, 5772451, 11544902, 23089804, 28862255, 57724510, 115449020]

約数ペア:

[(1, 115449020), (2, 57724510), (4, 28862255), (5, 23089804), (10, 11544902), (20, 5772451), (79, 1461380), (89, 1297180), (158, 730690), (178, 648590), (316, 365345), (356, 324295), (395, 292276), (445, 259436), (790, 146138), (821, 140620), (890, 129718), (1580, 73069), (1642, 70310), (1780, 64859), (3284, 35155), (4105, 28124), (7031, 16420), (8210, 14062)]