20105440

素因数分解:

$2^5\times 5^1\times {\mathrm{125659}}^1$

素因数の和:125674

約数の個数: 24

約数和(自身を含む): 47499480

約数和(自身を除く): 27394040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 125659, 251318, 502636, 628295, 1005272, 1256590, 2010544, 2513180, 4021088, 5026360, 10052720, 20105440]

約数ペア:

[(1, 20105440), (2, 10052720), (4, 5026360), (5, 4021088), (8, 2513180), (10, 2010544), (16, 1256590), (20, 1005272), (32, 628295), (40, 502636), (80, 251318), (160, 125659)]