20455817816

素因数分解:

$2^3\times 7^1\times {\mathrm{463}}^1\times {\mathrm{788947}}^1$

素因数の和:789423

約数の個数: 32

約数和(自身を含む): 43928624640

約数和(自身を除く): 23472806824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 463, 926, 1852, 3241, 3704, 6482, 12964, 25928, 788947, 1577894, 3155788, 5522629, 6311576, 11045258, 22090516, 44181032, 365282461, 730564922, 1461129844, 2556977227, 2922259688, 5113954454, 10227908908, 20455817816]

約数ペア:

[(1, 20455817816), (2, 10227908908), (4, 5113954454), (7, 2922259688), (8, 2556977227), (14, 1461129844), (28, 730564922), (56, 365282461), (463, 44181032), (926, 22090516), (1852, 11045258), (3241, 6311576), (3704, 5522629), (6482, 3155788), (12964, 1577894), (25928, 788947)]