161780490122

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1\times {\mathrm{720491}}^1$

素因数の和:720842

約数の個数: 24

約数和(自身を含む): 256938975072

約数和(自身を除く): 95158484950

約数列:

[1, 2, 19, 38, 311, 361, 622, 722, 5909, 11818, 112271, 224542, 720491, 1440982, 13689329, 27378658, 224072701, 260097251, 448145402, 520194502, 4257381319, 8514762638, 80890245061, 161780490122]

約数ペア:

[(1, 161780490122), (2, 80890245061), (19, 8514762638), (38, 4257381319), (311, 520194502), (361, 448145402), (622, 260097251), (722, 224072701), (5909, 27378658), (11818, 13689329), (112271, 1440982), (224542, 720491)]