20461168

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 52282368

約数和(自身を除く): 31821200

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 47, 52, 56, 91, 92, 94, 104, 112, 161, 169, 182, 184, 188, 208, 299, 322, 329, 338, 364, 368, 376, 598, 611, 644, 658, 676, 728, 752, 1081, 1183, 1196, 1222, 1288, 1316, 1352, 1456, 2093, 2162, 2366, 2392, 2444, 2576, 2632, 2704, 3887, 4186, 4277, 4324, 4732, 4784, 4888, 5264, 7567, 7774, 7943, 8372, 8554, 8648, 9464, 9776, 14053, 15134, 15548, 15886, 16744, 17108, 17296, 18928, 27209, 28106, 30268, 31096, 31772, 33488, 34216, 54418, 55601, 56212, 60536, 62192, 63544, 68432, 98371, 108836, 111202, 112424, 121072, 127088, 182689, 196742, 217672, 222404, 224848, 365378, 393484, 435344, 444808, 730756, 786968, 889616, 1278823, 1461512, 1573936, 2557646, 2923024, 5115292, 10230584, 20461168]

約数ペア:

[(1, 20461168), (2, 10230584), (4, 5115292), (7, 2923024), (8, 2557646), (13, 1573936), (14, 1461512), (16, 1278823), (23, 889616), (26, 786968), (28, 730756), (46, 444808), (47, 435344), (52, 393484), (56, 365378), (91, 224848), (92, 222404), (94, 217672), (104, 196742), (112, 182689), (161, 127088), (169, 121072), (182, 112424), (184, 111202), (188, 108836), (208, 98371), (299, 68432), (322, 63544), (329, 62192), (338, 60536), (364, 56212), (368, 55601), (376, 54418), (598, 34216), (611, 33488), (644, 31772), (658, 31096), (676, 30268), (728, 28106), (752, 27209), (1081, 18928), (1183, 17296), (1196, 17108), (1222, 16744), (1288, 15886), (1316, 15548), (1352, 15134), (1456, 14053), (2093, 9776), (2162, 9464), (2366, 8648), (2392, 8554), (2444, 8372), (2576, 7943), (2632, 7774), (2704, 7567), (3887, 5264), (4186, 4888), (4277, 4784), (4324, 4732)]