131027990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{689621}}^1$

素因数の和:689647

約数の個数: 16

約数和(自身を含む): 248263920

約数和(自身を除く): 117235930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 689621, 1379242, 3448105, 6896210, 13102799, 26205598, 65513995, 131027990]

約数ペア:

[(1, 131027990), (2, 65513995), (5, 26205598), (10, 13102799), (19, 6896210), (38, 3448105), (95, 1379242), (190, 689621)]