128840254

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{72139}}^1$

素因数の和:72207

約数の個数: 16

約数和(自身を含む): 207763200

約数和(自身を除く): 78922946

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 72139, 144278, 1370641, 2741282, 3390533, 6781066, 64420127, 128840254]

約数ペア:

[(1, 128840254), (2, 64420127), (19, 6781066), (38, 3390533), (47, 2741282), (94, 1370641), (893, 144278), (1786, 72139)]