20473900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3863}}^1$

素因数の和:3930

約数の個数: 36

約数和(自身を含む): 45278352

約数和(自身を除く): 24804452

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3863, 5300, 7726, 15452, 19315, 38630, 77260, 96575, 193150, 204739, 386300, 409478, 818956, 1023695, 2047390, 4094780, 5118475, 10236950, 20473900]

約数ペア:

[(1, 20473900), (2, 10236950), (4, 5118475), (5, 4094780), (10, 2047390), (20, 1023695), (25, 818956), (50, 409478), (53, 386300), (100, 204739), (106, 193150), (212, 96575), (265, 77260), (530, 38630), (1060, 19315), (1325, 15452), (2650, 7726), (3863, 5300)]