128539318

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{31397}}^1$

素因数の和:31511

約数の個数: 16

約数和(自身を含む): 203459040

約数和(自身を除く): 74919722

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 31397, 62794, 722131, 1444262, 2794333, 5588666, 64269659, 128539318]

約数ペア:

[(1, 128539318), (2, 64269659), (23, 5588666), (46, 2794333), (89, 1444262), (178, 722131), (2047, 62794), (4094, 31397)]