16856740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 36966384

約数和(自身を除く): 20109644

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 337, 410, 610, 674, 820, 1220, 1348, 1685, 2501, 3370, 5002, 6740, 10004, 12505, 13817, 20557, 25010, 27634, 41114, 50020, 55268, 69085, 82228, 102785, 138170, 205570, 276340, 411140, 842837, 1685674, 3371348, 4214185, 8428370, 16856740]

約数ペア:

[(1, 16856740), (2, 8428370), (4, 4214185), (5, 3371348), (10, 1685674), (20, 842837), (41, 411140), (61, 276340), (82, 205570), (122, 138170), (164, 102785), (205, 82228), (244, 69085), (305, 55268), (337, 50020), (410, 41114), (610, 27634), (674, 25010), (820, 20557), (1220, 13817), (1348, 12505), (1685, 10004), (2501, 6740), (3370, 5002)]