81455580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452531}}^1$

素因数の和:452546

約数の個数: 36

約数和(自身を含む): 247082472

約数和(自身を除く): 165626892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452531, 905062, 1357593, 1810124, 2262655, 2715186, 4072779, 4525310, 5430372, 6787965, 8145558, 9050620, 13575930, 16291116, 20363895, 27151860, 40727790, 81455580]

約数ペア:

[(1, 81455580), (2, 40727790), (3, 27151860), (4, 20363895), (5, 16291116), (6, 13575930), (9, 9050620), (10, 8145558), (12, 6787965), (15, 5430372), (18, 4525310), (20, 4072779), (30, 2715186), (36, 2262655), (45, 1810124), (60, 1357593), (90, 905062), (180, 452531)]