205820164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 404957952

約数和(自身を除く): 199137788

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 271, 421, 451, 542, 842, 902, 1084, 1684, 1804, 2981, 4631, 5962, 9262, 11111, 11924, 17261, 18524, 22222, 34522, 44444, 69044, 114091, 122221, 189871, 228182, 244442, 379742, 456364, 488884, 759484, 1255001, 2510002, 4677731, 5020004, 9355462, 18710924, 51455041, 102910082, 205820164]

約数ペア:

[(1, 205820164), (2, 102910082), (4, 51455041), (11, 18710924), (22, 9355462), (41, 5020004), (44, 4677731), (82, 2510002), (164, 1255001), (271, 759484), (421, 488884), (451, 456364), (542, 379742), (842, 244442), (902, 228182), (1084, 189871), (1684, 122221), (1804, 114091), (2981, 69044), (4631, 44444), (5962, 34522), (9262, 22222), (11111, 18524), (11924, 17261)]