11121920

素因数分解:

$2^8\times 5^1\times {\mathrm{8689}}^1$

素因数の和:8710

約数の個数: 36

約数和(自身を含む): 26643540

約数和(自身を除く): 15521620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 8689, 17378, 34756, 43445, 69512, 86890, 139024, 173780, 278048, 347560, 556096, 695120, 1112192, 1390240, 2224384, 2780480, 5560960, 11121920]

約数ペア:

[(1, 11121920), (2, 5560960), (4, 2780480), (5, 2224384), (8, 1390240), (10, 1112192), (16, 695120), (20, 556096), (32, 347560), (40, 278048), (64, 173780), (80, 139024), (128, 86890), (160, 69512), (256, 43445), (320, 34756), (640, 17378), (1280, 8689)]