80977940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{439}}^1$

素因数の和:872

約数の個数: 48

約数和(自身を含む): 178295040

約数和(自身を除く): 97317100

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 401, 439, 460, 802, 878, 1604, 1756, 2005, 2195, 4010, 4390, 8020, 8780, 9223, 10097, 18446, 20194, 36892, 40388, 46115, 50485, 92230, 100970, 176039, 184460, 201940, 352078, 704156, 880195, 1760390, 3520780, 4048897, 8097794, 16195588, 20244485, 40488970, 80977940]

約数ペア:

[(1, 80977940), (2, 40488970), (4, 20244485), (5, 16195588), (10, 8097794), (20, 4048897), (23, 3520780), (46, 1760390), (92, 880195), (115, 704156), (230, 352078), (401, 201940), (439, 184460), (460, 176039), (802, 100970), (878, 92230), (1604, 50485), (1756, 46115), (2005, 40388), (2195, 36892), (4010, 20194), (4390, 18446), (8020, 10097), (8780, 9223)]