20045564

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1818

約数の個数: 48

約数和(自身を含む): 44943360

約数和(自身を除く): 24897796

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 37, 44, 74, 77, 148, 154, 259, 308, 407, 518, 814, 1036, 1628, 1759, 2849, 3518, 5698, 7036, 11396, 12313, 19349, 24626, 38698, 49252, 65083, 77396, 130166, 135443, 260332, 270886, 455581, 541772, 715913, 911162, 1431826, 1822324, 2863652, 5011391, 10022782, 20045564]

約数ペア:

[(1, 20045564), (2, 10022782), (4, 5011391), (7, 2863652), (11, 1822324), (14, 1431826), (22, 911162), (28, 715913), (37, 541772), (44, 455581), (74, 270886), (77, 260332), (148, 135443), (154, 130166), (259, 77396), (308, 65083), (407, 49252), (518, 38698), (814, 24626), (1036, 19349), (1628, 12313), (1759, 11396), (2849, 7036), (3518, 5698)]