28820990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23819}}^1$

素因数の和:23848

約数の個数: 24

約数和(自身を含む): 57025080

約数和(自身を除く): 28204090

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23819, 47638, 119095, 238190, 262009, 524018, 1310045, 2620090, 2882099, 5764198, 14410495, 28820990]

約数ペア:

[(1, 28820990), (2, 14410495), (5, 5764198), (10, 2882099), (11, 2620090), (22, 1310045), (55, 524018), (110, 262009), (121, 238190), (242, 119095), (605, 47638), (1210, 23819)]