72417440

素因数分解:

$2^5\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1031}}^1$

素因数の和:1485

約数の個数: 48

約数和(自身を含む): 171642240

約数和(自身を除く): 99224800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 439, 878, 1031, 1756, 2062, 2195, 3512, 4124, 4390, 5155, 7024, 8248, 8780, 10310, 14048, 16496, 17560, 20620, 32992, 35120, 41240, 70240, 82480, 164960, 452609, 905218, 1810436, 2263045, 3620872, 4526090, 7241744, 9052180, 14483488, 18104360, 36208720, 72417440]

約数ペア:

[(1, 72417440), (2, 36208720), (4, 18104360), (5, 14483488), (8, 9052180), (10, 7241744), (16, 4526090), (20, 3620872), (32, 2263045), (40, 1810436), (80, 905218), (160, 452609), (439, 164960), (878, 82480), (1031, 70240), (1756, 41240), (2062, 35120), (2195, 32992), (3512, 20620), (4124, 17560), (4390, 16496), (5155, 14048), (7024, 10310), (8248, 8780)]