81491460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{719}}^1\times {\mathrm{1889}}^1$

素因数の和:2620

約数の個数: 48

約数和(自身を含む): 228614400

約数和(自身を除く): 147122940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 719, 1438, 1889, 2157, 2876, 3595, 3778, 4314, 5667, 7190, 7556, 8628, 9445, 10785, 11334, 14380, 18890, 21570, 22668, 28335, 37780, 43140, 56670, 113340, 1358191, 2716382, 4074573, 5432764, 6790955, 8149146, 13581910, 16298292, 20372865, 27163820, 40745730, 81491460]

約数ペア:

[(1, 81491460), (2, 40745730), (3, 27163820), (4, 20372865), (5, 16298292), (6, 13581910), (10, 8149146), (12, 6790955), (15, 5432764), (20, 4074573), (30, 2716382), (60, 1358191), (719, 113340), (1438, 56670), (1889, 43140), (2157, 37780), (2876, 28335), (3595, 22668), (3778, 21570), (4314, 18890), (5667, 14380), (7190, 11334), (7556, 10785), (8628, 9445)]