20081938760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2970701}}^1$

素因数の和:2970738

約数の個数: 48

約数和(自身を含む): 48927461940

約数和(自身を除く): 28845523180

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 2970701, 5941402, 11882804, 14853505, 23765608, 29707010, 38619113, 59414020, 77238226, 118828040, 154476452, 193095565, 308952904, 386191130, 502048469, 772382260, 1004096938, 1544764520, 2008193876, 2510242345, 4016387752, 5020484690, 10040969380, 20081938760]

約数ペア:

[(1, 20081938760), (2, 10040969380), (4, 5020484690), (5, 4016387752), (8, 2510242345), (10, 2008193876), (13, 1544764520), (20, 1004096938), (26, 772382260), (40, 502048469), (52, 386191130), (65, 308952904), (104, 193095565), (130, 154476452), (169, 118828040), (260, 77238226), (338, 59414020), (520, 38619113), (676, 29707010), (845, 23765608), (1352, 14853505), (1690, 11882804), (3380, 5941402), (6760, 2970701)]