81909124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{7789}}^1$

素因数の和:8043

約数の個数: 24

約数和(自身を含む): 157046400

約数和(自身を除く): 75137276

約数列:

[1, 2, 4, 11, 22, 44, 239, 478, 956, 2629, 5258, 7789, 10516, 15578, 31156, 85679, 171358, 342716, 1861571, 3723142, 7446284, 20477281, 40954562, 81909124]

約数ペア:

[(1, 81909124), (2, 40954562), (4, 20477281), (11, 7446284), (22, 3723142), (44, 1861571), (239, 342716), (478, 171358), (956, 85679), (2629, 31156), (5258, 15578), (7789, 10516)]