81427412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 159776064

約数和(自身を除く): 78348652

約数列:

[1, 2, 4, 11, 22, 44, 73, 101, 146, 202, 251, 292, 404, 502, 803, 1004, 1111, 1606, 2222, 2761, 3212, 4444, 5522, 7373, 11044, 14746, 18323, 25351, 29492, 36646, 50702, 73292, 81103, 101404, 162206, 201553, 278861, 324412, 403106, 557722, 806212, 1115444, 1850623, 3701246, 7402492, 20356853, 40713706, 81427412]

約数ペア:

[(1, 81427412), (2, 40713706), (4, 20356853), (11, 7402492), (22, 3701246), (44, 1850623), (73, 1115444), (101, 806212), (146, 557722), (202, 403106), (251, 324412), (292, 278861), (404, 201553), (502, 162206), (803, 101404), (1004, 81103), (1111, 73292), (1606, 50702), (2222, 36646), (2761, 29492), (3212, 25351), (4444, 18323), (5522, 14746), (7373, 11044)]