80378973

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{4703}}^1$

素因数の和:4926

約数の個数: 20

約数和(自身を含む): 120667008

約数和(自身を除く): 40288035

約数列:

[1, 3, 9, 27, 81, 211, 633, 1899, 4703, 5697, 14109, 17091, 42327, 126981, 380943, 992333, 2976999, 8930997, 26792991, 80378973]

約数ペア:

[(1, 80378973), (3, 26792991), (9, 8930997), (27, 2976999), (81, 992333), (211, 380943), (633, 126981), (1899, 42327), (4703, 17091), (5697, 14109)]