280136164

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^2$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 627528384

約数和(自身を除く): 347392220

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 131, 154, 212, 262, 308, 371, 524, 583, 742, 917, 1166, 1441, 1484, 1834, 2332, 2882, 3668, 4081, 5764, 6943, 8162, 10087, 13886, 16324, 17161, 20174, 27772, 34322, 40348, 48601, 68644, 76373, 97202, 120127, 152746, 188771, 194404, 240254, 305492, 377542, 480508, 534611, 755084, 909533, 1069222, 1321397, 1819066, 2138444, 2642794, 3638132, 5285588, 6366731, 10004863, 12733462, 20009726, 25466924, 40019452, 70034041, 140068082, 280136164]

約数ペア:

[(1, 280136164), (2, 140068082), (4, 70034041), (7, 40019452), (11, 25466924), (14, 20009726), (22, 12733462), (28, 10004863), (44, 6366731), (53, 5285588), (77, 3638132), (106, 2642794), (131, 2138444), (154, 1819066), (212, 1321397), (262, 1069222), (308, 909533), (371, 755084), (524, 534611), (583, 480508), (742, 377542), (917, 305492), (1166, 240254), (1441, 194404), (1484, 188771), (1834, 152746), (2332, 120127), (2882, 97202), (3668, 76373), (4081, 68644), (5764, 48601), (6943, 40348), (8162, 34322), (10087, 27772), (13886, 20174), (16324, 17161)]