21280440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177337}}^1$

素因数の和:177351

約数の個数: 32

約数和(自身を含む): 63841680

約数和(自身を除く): 42561240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177337, 354674, 532011, 709348, 886685, 1064022, 1418696, 1773370, 2128044, 2660055, 3546740, 4256088, 5320110, 7093480, 10640220, 21280440]

約数ペア:

[(1, 21280440), (2, 10640220), (3, 7093480), (4, 5320110), (5, 4256088), (6, 3546740), (8, 2660055), (10, 2128044), (12, 1773370), (15, 1418696), (20, 1064022), (24, 886685), (30, 709348), (40, 532011), (60, 354674), (120, 177337)]