40338376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{977}}^1$

素因数の和:1393

約数の個数: 32

約数和(自身を含む): 81741240

約数和(自身を除く): 41402864

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 397, 794, 977, 1588, 1954, 3176, 3908, 5161, 7816, 10322, 12701, 20644, 25402, 41288, 50804, 101608, 387869, 775738, 1551476, 3102952, 5042297, 10084594, 20169188, 40338376]

約数ペア:

[(1, 40338376), (2, 20169188), (4, 10084594), (8, 5042297), (13, 3102952), (26, 1551476), (52, 775738), (104, 387869), (397, 101608), (794, 50804), (977, 41288), (1588, 25402), (1954, 20644), (3176, 12701), (3908, 10322), (5161, 7816)]