72815580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{404531}}^1$

素因数の和:404546

約数の個数: 36

約数和(自身を含む): 220874472

約数和(自身を除く): 148058892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 404531, 809062, 1213593, 1618124, 2022655, 2427186, 3640779, 4045310, 4854372, 6067965, 7281558, 8090620, 12135930, 14563116, 18203895, 24271860, 36407790, 72815580]

約数ペア:

[(1, 72815580), (2, 36407790), (3, 24271860), (4, 18203895), (5, 14563116), (6, 12135930), (9, 8090620), (10, 7281558), (12, 6067965), (15, 4854372), (18, 4045310), (20, 3640779), (30, 2427186), (36, 2022655), (45, 1618124), (60, 1213593), (90, 809062), (180, 404531)]