18402880

素因数分解:

$2^6\times 5^1\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:587

約数の個数: 56

約数和(自身を含む): 44256960

約数和(自身を除く): 25854080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 131, 160, 262, 320, 439, 524, 655, 878, 1048, 1310, 1756, 2096, 2195, 2620, 3512, 4192, 4390, 5240, 7024, 8384, 8780, 10480, 14048, 17560, 20960, 28096, 35120, 41920, 57509, 70240, 115018, 140480, 230036, 287545, 460072, 575090, 920144, 1150180, 1840288, 2300360, 3680576, 4600720, 9201440, 18402880]

約数ペア:

[(1, 18402880), (2, 9201440), (4, 4600720), (5, 3680576), (8, 2300360), (10, 1840288), (16, 1150180), (20, 920144), (32, 575090), (40, 460072), (64, 287545), (80, 230036), (131, 140480), (160, 115018), (262, 70240), (320, 57509), (439, 41920), (524, 35120), (655, 28096), (878, 20960), (1048, 17560), (1310, 14048), (1756, 10480), (2096, 8780), (2195, 8384), (2620, 7024), (3512, 5240), (4192, 4390)]