720294849

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{206803}}^1$

素因数の和:206858

約数の個数: 20

約数和(自身を含む): 1101024496

約数和(自身を除く): 380729647

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 206803, 620409, 1861227, 5583681, 8892529, 16751043, 26677587, 80032761, 240098283, 720294849]

約数ペア:

[(1, 720294849), (3, 240098283), (9, 80032761), (27, 26677587), (43, 16751043), (81, 8892529), (129, 5583681), (387, 1861227), (1161, 620409), (3483, 206803)]