128542010

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{15889}}^1$

素因数の和:16705

約数の個数: 16

約数和(自身を含む): 231676200

約数和(自身を除く): 103134190

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 15889, 31778, 79445, 158890, 12854201, 25708402, 64271005, 128542010]

約数ペア:

[(1, 128542010), (2, 64271005), (5, 25708402), (10, 12854201), (809, 158890), (1618, 79445), (4045, 31778), (8090, 15889)]