128930291

素因数分解:

$7^1\times {\mathrm{53}}^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 153914880

約数和(自身を除く): 24984589

約数列:

[1, 7, 53, 79, 83, 371, 553, 581, 2809, 4187, 4399, 6557, 19663, 29309, 30793, 45899, 221911, 233147, 347521, 1553377, 1632029, 2432647, 18418613, 128930291]

約数ペア:

[(1, 128930291), (7, 18418613), (53, 2432647), (79, 1632029), (83, 1553377), (371, 347521), (553, 233147), (581, 221911), (2809, 45899), (4187, 30793), (4399, 29309), (6557, 19663)]