20791821640

素因数分解:

$2^3\times 5^1\times {\mathrm{22283}}^1\times {\mathrm{23327}}^1$

素因数の和:45621

約数の個数: 32

約数和(自身を含む): 46785703680

約数和(自身を除く): 25993882040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22283, 23327, 44566, 46654, 89132, 93308, 111415, 116635, 178264, 186616, 222830, 233270, 445660, 466540, 891320, 933080, 519795541, 1039591082, 2079182164, 2598977705, 4158364328, 5197955410, 10395910820, 20791821640]

約数ペア:

[(1, 20791821640), (2, 10395910820), (4, 5197955410), (5, 4158364328), (8, 2598977705), (10, 2079182164), (20, 1039591082), (40, 519795541), (22283, 933080), (23327, 891320), (44566, 466540), (46654, 445660), (89132, 233270), (93308, 222830), (111415, 186616), (116635, 178264)]