20543870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{563}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 38374560

約数和(自身を除く): 17830690

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 563, 890, 1126, 2815, 3649, 5630, 7298, 18245, 23083, 36490, 46166, 50107, 100214, 115415, 230830, 250535, 501070, 2054387, 4108774, 10271935, 20543870]

約数ペア:

[(1, 20543870), (2, 10271935), (5, 4108774), (10, 2054387), (41, 501070), (82, 250535), (89, 230830), (178, 115415), (205, 100214), (410, 50107), (445, 46166), (563, 36490), (890, 23083), (1126, 18245), (2815, 7298), (3649, 5630)]