21763120

素因数分解:

$2^4\times 5^1\times {\mathrm{272039}}^1$

素因数の和:272052

約数の個数: 20

約数和(自身を含む): 50599440

約数和(自身を除く): 28836320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272039, 544078, 1088156, 1360195, 2176312, 2720390, 4352624, 5440780, 10881560, 21763120]

約数ペア:

[(1, 21763120), (2, 10881560), (4, 5440780), (5, 4352624), (8, 2720390), (10, 2176312), (16, 1360195), (20, 1088156), (40, 544078), (80, 272039)]