408031460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1\times {\mathrm{1453}}^1$

素因数の和:2220

約数の個数: 48

約数和(自身を含む): 903806400

約数和(自身を除く): 495774940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 739, 1453, 1478, 2906, 2956, 3695, 5812, 7265, 7390, 14041, 14530, 14780, 27607, 28082, 29060, 55214, 56164, 70205, 110428, 138035, 140410, 276070, 280820, 552140, 1073767, 2147534, 4295068, 5368835, 10737670, 20401573, 21475340, 40803146, 81606292, 102007865, 204015730, 408031460]

約数ペア:

[(1, 408031460), (2, 204015730), (4, 102007865), (5, 81606292), (10, 40803146), (19, 21475340), (20, 20401573), (38, 10737670), (76, 5368835), (95, 4295068), (190, 2147534), (380, 1073767), (739, 552140), (1453, 280820), (1478, 276070), (2906, 140410), (2956, 138035), (3695, 110428), (5812, 70205), (7265, 56164), (7390, 55214), (14041, 29060), (14530, 28082), (14780, 27607)]