18104360

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1031}}^1$

素因数の和:1481

約数の個数: 32

約数和(自身を含む): 40867200

約数和(自身を除く): 22762840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1031, 1756, 2062, 2195, 3512, 4124, 4390, 5155, 8248, 8780, 10310, 17560, 20620, 41240, 452609, 905218, 1810436, 2263045, 3620872, 4526090, 9052180, 18104360]

約数ペア:

[(1, 18104360), (2, 9052180), (4, 4526090), (5, 3620872), (8, 2263045), (10, 1810436), (20, 905218), (40, 452609), (439, 41240), (878, 20620), (1031, 17560), (1756, 10310), (2062, 8780), (2195, 8248), (3512, 5155), (4124, 4390)]