80016496947

素因数分解:

$3^4\times {\mathrm{1997}}^1\times {\mathrm{494671}}^1$

素因数の和:496680

約数の個数: 20

約数和(自身を含む): 119590913376

約数和(自身を除く): 39574416429

約数列:

[1, 3, 9, 27, 81, 1997, 5991, 17973, 53919, 161757, 494671, 1484013, 4452039, 13356117, 40068351, 987857987, 2963573961, 8890721883, 26672165649, 80016496947]

約数ペア:

[(1, 80016496947), (3, 26672165649), (9, 8890721883), (27, 2963573961), (81, 987857987), (1997, 40068351), (5991, 13356117), (17973, 4452039), (53919, 1484013), (161757, 494671)]