212924560

素因数分解:

$2^4\times 5^1\times {\mathrm{2661557}}^1$

素因数の和:2661570

約数の個数: 20

約数和(自身を含む): 495049788

約数和(自身を除く): 282125228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2661557, 5323114, 10646228, 13307785, 21292456, 26615570, 42584912, 53231140, 106462280, 212924560]

約数ペア:

[(1, 212924560), (2, 106462280), (4, 53231140), (5, 42584912), (8, 26615570), (10, 21292456), (16, 13307785), (20, 10646228), (40, 5323114), (80, 2661557)]