31305185

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2152

約数の個数: 16

約数和(自身を含む): 39505536

約数和(自身を除く): 8200351

約数列:

[1, 5, 23, 115, 137, 685, 1987, 3151, 9935, 15755, 45701, 228505, 272219, 1361095, 6261037, 31305185]

約数ペア:

[(1, 31305185), (5, 6261037), (23, 1361095), (115, 272219), (137, 228505), (685, 45701), (1987, 15755), (3151, 9935)]