208077880

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{77641}}^1$

素因数の和:77719

約数の個数: 32

約数和(自身を含む): 475169040

約数和(自身を除く): 267091160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 77641, 155282, 310564, 388205, 621128, 776410, 1552820, 3105640, 5201947, 10403894, 20807788, 26009735, 41615576, 52019470, 104038940, 208077880]

約数ペア:

[(1, 208077880), (2, 104038940), (4, 52019470), (5, 41615576), (8, 26009735), (10, 20807788), (20, 10403894), (40, 5201947), (67, 3105640), (134, 1552820), (268, 776410), (335, 621128), (536, 388205), (670, 310564), (1340, 155282), (2680, 77641)]