19944720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27701}}^1$

素因数の和:27720

約数の個数: 60

約数和(自身を含む): 66983436

約数和(自身を除く): 47038716

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27701, 55402, 83103, 110804, 138505, 166206, 221608, 249309, 277010, 332412, 415515, 443216, 498618, 554020, 664824, 831030, 997236, 1108040, 1246545, 1329648, 1662060, 1994472, 2216080, 2493090, 3324120, 3988944, 4986180, 6648240, 9972360, 19944720]

約数ペア:

[(1, 19944720), (2, 9972360), (3, 6648240), (4, 4986180), (5, 3988944), (6, 3324120), (8, 2493090), (9, 2216080), (10, 1994472), (12, 1662060), (15, 1329648), (16, 1246545), (18, 1108040), (20, 997236), (24, 831030), (30, 664824), (36, 554020), (40, 498618), (45, 443216), (48, 415515), (60, 332412), (72, 277010), (80, 249309), (90, 221608), (120, 166206), (144, 138505), (180, 110804), (240, 83103), (360, 55402), (720, 27701)]