20984960

素因数分解:

$2^7\times 5^1\times {\mathrm{32789}}^1$

素因数の和:32808

約数の個数: 32

約数和(自身を含む): 50168700

約数和(自身を除く): 29183740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32789, 65578, 131156, 163945, 262312, 327890, 524624, 655780, 1049248, 1311560, 2098496, 2623120, 4196992, 5246240, 10492480, 20984960]

約数ペア:

[(1, 20984960), (2, 10492480), (4, 5246240), (5, 4196992), (8, 2623120), (10, 2098496), (16, 1311560), (20, 1049248), (32, 655780), (40, 524624), (64, 327890), (80, 262312), (128, 163945), (160, 131156), (320, 65578), (640, 32789)]