205200440

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{16183}}^1$

素因数の和:16511

約数の個数: 32

約数和(自身を含む): 463186080

約数和(自身を除く): 257985640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 16183, 32366, 64732, 80915, 129464, 161830, 323660, 647320, 5130011, 10260022, 20520044, 25650055, 41040088, 51300110, 102600220, 205200440]

約数ペア:

[(1, 205200440), (2, 102600220), (4, 51300110), (5, 41040088), (8, 25650055), (10, 20520044), (20, 10260022), (40, 5130011), (317, 647320), (634, 323660), (1268, 161830), (1585, 129464), (2536, 80915), (3170, 64732), (6340, 32366), (12680, 16183)]