20087600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3863}}^1$

素因数の和:3894

約数の個数: 60

約数和(自身を含む): 51986256

約数和(自身を除く): 31898656

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3863, 5200, 7726, 15452, 19315, 30904, 38630, 50219, 61808, 77260, 96575, 100438, 154520, 193150, 200876, 251095, 309040, 386300, 401752, 502190, 772600, 803504, 1004380, 1255475, 1545200, 2008760, 2510950, 4017520, 5021900, 10043800, 20087600]

約数ペア:

[(1, 20087600), (2, 10043800), (4, 5021900), (5, 4017520), (8, 2510950), (10, 2008760), (13, 1545200), (16, 1255475), (20, 1004380), (25, 803504), (26, 772600), (40, 502190), (50, 401752), (52, 386300), (65, 309040), (80, 251095), (100, 200876), (104, 193150), (130, 154520), (200, 100438), (208, 96575), (260, 77260), (325, 61808), (400, 50219), (520, 38630), (650, 30904), (1040, 19315), (1300, 15452), (2600, 7726), (3863, 5200)]