223960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 550800

約数和(自身を除く): 326840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 509, 1018, 2036, 2545, 4072, 5090, 5599, 10180, 11198, 20360, 22396, 27995, 44792, 55990, 111980, 223960]

約数ペア:

[(1, 223960), (2, 111980), (4, 55990), (5, 44792), (8, 27995), (10, 22396), (11, 20360), (20, 11198), (22, 10180), (40, 5599), (44, 5090), (55, 4072), (88, 2545), (110, 2036), (220, 1018), (440, 509)]