21808480

素因数分解:

$2^5\times 5^1\times {\mathrm{136303}}^1$

素因数の和:136318

約数の個数: 24

約数和(自身を含む): 51522912

約数和(自身を除く): 29714432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136303, 272606, 545212, 681515, 1090424, 1363030, 2180848, 2726060, 4361696, 5452120, 10904240, 21808480]

約数ペア:

[(1, 21808480), (2, 10904240), (4, 5452120), (5, 4361696), (8, 2726060), (10, 2180848), (16, 1363030), (20, 1090424), (32, 681515), (40, 545212), (80, 272606), (160, 136303)]