81976028

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{661097}}^1$

素因数の和:661132

約数の個数: 12

約数和(自身を含む): 148085952

約数和(自身を除く): 66109924

約数列:

[1, 2, 4, 31, 62, 124, 661097, 1322194, 2644388, 20494007, 40988014, 81976028]

約数ペア:

[(1, 81976028), (2, 40988014), (4, 20494007), (31, 2644388), (62, 1322194), (124, 661097)]