78872070818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{977}}^1\times {\mathrm{2124443}}^1$

素因数の和:2125441

約数の個数: 16

約数和(自身を含む): 124662373920

約数和(自身を除く): 45790303102

約数列:

[1, 2, 19, 38, 977, 1954, 18563, 37126, 2124443, 4248886, 40364417, 80728834, 2075580811, 4151161622, 39436035409, 78872070818]

約数ペア:

[(1, 78872070818), (2, 39436035409), (19, 4151161622), (38, 2075580811), (977, 80728834), (1954, 40364417), (18563, 4248886), (37126, 2124443)]