81232790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{427541}}^1$

素因数の和:427567

約数の個数: 16

約数和(自身を含む): 153915120

約数和(自身を除く): 72682330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 427541, 855082, 2137705, 4275410, 8123279, 16246558, 40616395, 81232790]

約数ペア:

[(1, 81232790), (2, 40616395), (5, 16246558), (10, 8123279), (19, 4275410), (38, 2137705), (95, 855082), (190, 427541)]