256437970

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{187181}}^1$

素因数の和:187325

約数の個数: 16

約数和(自身を含む): 464960088

約数和(自身を除く): 208522118

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 187181, 374362, 935905, 1871810, 25643797, 51287594, 128218985, 256437970]

約数ペア:

[(1, 256437970), (2, 128218985), (5, 51287594), (10, 25643797), (137, 1871810), (274, 935905), (685, 374362), (1370, 187181)]