21887680

素因数分解:

$2^6\times 5^1\times {\mathrm{68399}}^1$

素因数の和:68416

約数の個数: 28

約数和(自身を含む): 52120800

約数和(自身を除く): 30233120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68399, 136798, 273596, 341995, 547192, 683990, 1094384, 1367980, 2188768, 2735960, 4377536, 5471920, 10943840, 21887680]

約数ペア:

[(1, 21887680), (2, 10943840), (4, 5471920), (5, 4377536), (8, 2735960), (10, 2188768), (16, 1367980), (20, 1094384), (32, 683990), (40, 547192), (64, 341995), (80, 273596), (160, 136798), (320, 68399)]