81380792

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{90023}}^1$

素因数の和:90142

約数の個数: 16

約数和(自身を含む): 153941040

約数和(自身を除く): 72560248

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 90023, 180046, 360092, 720184, 10172599, 20345198, 40690396, 81380792]

約数ペア:

[(1, 81380792), (2, 40690396), (4, 20345198), (8, 10172599), (113, 720184), (226, 360092), (452, 180046), (904, 90023)]