81953456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{394007}}^1$

素因数の和:394028

約数の個数: 20

約数和(自身を含む): 170999472

約数和(自身を除く): 89046016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 394007, 788014, 1576028, 3152056, 5122091, 6304112, 10244182, 20488364, 40976728, 81953456]

約数ペア:

[(1, 81953456), (2, 40976728), (4, 20488364), (8, 10244182), (13, 6304112), (16, 5122091), (26, 3152056), (52, 1576028), (104, 788014), (208, 394007)]