111980

素因数分解:

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

素因数の和:529

約数の個数: 24

約数和(自身を含む): 257040

約数和(自身を除く): 145060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 509, 1018, 2036, 2545, 5090, 5599, 10180, 11198, 22396, 27995, 55990, 111980]

約数ペア:

[(1, 111980), (2, 55990), (4, 27995), (5, 22396), (10, 11198), (11, 10180), (20, 5599), (22, 5090), (44, 2545), (55, 2036), (110, 1018), (220, 509)]