666224

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3203}}^1$

素因数の和:3224

約数の個数: 20

約数和(自身を含む): 1390536

約数和(自身を除く): 724312

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3203, 6406, 12812, 25624, 41639, 51248, 83278, 166556, 333112, 666224]

約数ペア:

[(1, 666224), (2, 333112), (4, 166556), (8, 83278), (13, 51248), (16, 41639), (26, 25624), (52, 12812), (104, 6406), (208, 3203)]