205691005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 273901824

約数和(自身を除く): 68210819

約数列:

[1, 5, 13, 65, 67, 73, 335, 365, 647, 871, 949, 3235, 4355, 4745, 4891, 8411, 24455, 42055, 43349, 47231, 63583, 216745, 236155, 317915, 563537, 614003, 2817685, 3070015, 3164477, 15822385, 41138201, 205691005]

約数ペア:

[(1, 205691005), (5, 41138201), (13, 15822385), (65, 3164477), (67, 3070015), (73, 2817685), (335, 614003), (365, 563537), (647, 317915), (871, 236155), (949, 216745), (3235, 63583), (4355, 47231), (4745, 43349), (4891, 42055), (8411, 24455)]