18156980075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{20147}}^1$

素因数の和:20276

約数の個数: 48

約数和(自身を含む): 25183388160

約数和(自身を除く): 7026408085

約数列:

[1, 5, 13, 25, 47, 59, 65, 235, 295, 325, 611, 767, 1175, 1475, 2773, 3055, 3835, 13865, 15275, 19175, 20147, 36049, 69325, 100735, 180245, 261911, 503675, 901225, 946909, 1188673, 1309555, 4734545, 5943365, 6547775, 12309817, 15452749, 23672725, 29716825, 55867631, 61549085, 77263745, 279338155, 307745425, 386318725, 726279203, 1396690775, 3631396015, 18156980075]

約数ペア:

[(1, 18156980075), (5, 3631396015), (13, 1396690775), (25, 726279203), (47, 386318725), (59, 307745425), (65, 279338155), (235, 77263745), (295, 61549085), (325, 55867631), (611, 29716825), (767, 23672725), (1175, 15452749), (1475, 12309817), (2773, 6547775), (3055, 5943365), (3835, 4734545), (13865, 1309555), (15275, 1188673), (19175, 946909), (20147, 901225), (36049, 503675), (69325, 261911), (100735, 180245)]