81311984

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{30071}}^1$

素因数の和:30105

約数の個数: 30

約数和(自身を含む): 170598456

約数和(自身を除く): 89286472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 30071, 60142, 120284, 240568, 390923, 481136, 781846, 1563692, 3127384, 5081999, 6254768, 10163998, 20327996, 40655992, 81311984]

約数ペア:

[(1, 81311984), (2, 40655992), (4, 20327996), (8, 10163998), (13, 6254768), (16, 5081999), (26, 3127384), (52, 1563692), (104, 781846), (169, 481136), (208, 390923), (338, 240568), (676, 120284), (1352, 60142), (2704, 30071)]