20166850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1051

約数の個数: 48

約数和(自身を含む): 42068736

約数和(自身を除く): 21901886

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 185, 275, 370, 407, 550, 814, 925, 991, 1850, 1982, 2035, 4070, 4955, 9910, 10175, 10901, 20350, 21802, 24775, 36667, 49550, 54505, 73334, 109010, 183335, 272525, 366670, 403337, 545050, 806674, 916675, 1833350, 2016685, 4033370, 10083425, 20166850]

約数ペア:

[(1, 20166850), (2, 10083425), (5, 4033370), (10, 2016685), (11, 1833350), (22, 916675), (25, 806674), (37, 545050), (50, 403337), (55, 366670), (74, 272525), (110, 183335), (185, 109010), (275, 73334), (370, 54505), (407, 49550), (550, 36667), (814, 24775), (925, 21802), (991, 20350), (1850, 10901), (1982, 10175), (2035, 9910), (4070, 4955)]