20565527020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1279}}^1\times {\mathrm{19609}}^1$

素因数の和:20938

約数の個数: 48

約数和(自身を含む): 44277811200

約数和(自身を除く): 23712284180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1279, 2558, 5116, 6395, 12790, 19609, 25580, 39218, 52439, 78436, 98045, 104878, 196090, 209756, 262195, 392180, 524390, 803969, 1048780, 1607938, 3215876, 4019845, 8039690, 16079380, 25079911, 50159822, 100319644, 125399555, 250799110, 501598220, 1028276351, 2056552702, 4113105404, 5141381755, 10282763510, 20565527020]

約数ペア:

[(1, 20565527020), (2, 10282763510), (4, 5141381755), (5, 4113105404), (10, 2056552702), (20, 1028276351), (41, 501598220), (82, 250799110), (164, 125399555), (205, 100319644), (410, 50159822), (820, 25079911), (1279, 16079380), (2558, 8039690), (5116, 4019845), (6395, 3215876), (12790, 1607938), (19609, 1048780), (25580, 803969), (39218, 524390), (52439, 392180), (78436, 262195), (98045, 209756), (104878, 196090)]