20127712

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 43593984

約数和(自身を除く): 23466272

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 211, 271, 352, 422, 542, 844, 1084, 1688, 2168, 2321, 2981, 3376, 4336, 4642, 5962, 6752, 8672, 9284, 11924, 18568, 23848, 37136, 47696, 57181, 74272, 95392, 114362, 228724, 457448, 628991, 914896, 1257982, 1829792, 2515964, 5031928, 10063856, 20127712]

約数ペア:

[(1, 20127712), (2, 10063856), (4, 5031928), (8, 2515964), (11, 1829792), (16, 1257982), (22, 914896), (32, 628991), (44, 457448), (88, 228724), (176, 114362), (211, 95392), (271, 74272), (352, 57181), (422, 47696), (542, 37136), (844, 23848), (1084, 18568), (1688, 11924), (2168, 9284), (2321, 8672), (2981, 6752), (3376, 5962), (4336, 4642)]