66493648

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{319681}}^1$

素因数の和:319702

約数の個数: 20

約数和(自身を含む): 138741988

約数和(自身を除く): 72248340

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 319681, 639362, 1278724, 2557448, 4155853, 5114896, 8311706, 16623412, 33246824, 66493648]

約数ペア:

[(1, 66493648), (2, 33246824), (4, 16623412), (8, 8311706), (13, 5114896), (16, 4155853), (26, 2557448), (52, 1278724), (104, 639362), (208, 319681)]