81379216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{164071}}^1$

素因数の和:164110

約数の個数: 20

約数和(自身を含む): 162759424

約数和(自身を除く): 81380208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 164071, 328142, 656284, 1312568, 2625136, 5086201, 10172402, 20344804, 40689608, 81379216]

約数ペア:

[(1, 81379216), (2, 40689608), (4, 20344804), (8, 10172402), (16, 5086201), (31, 2625136), (62, 1312568), (124, 656284), (248, 328142), (496, 164071)]