81815888

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 206102880

約数和(自身を除く): 124286992

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 53, 56, 77, 88, 98, 106, 112, 154, 176, 179, 196, 212, 308, 358, 371, 392, 424, 539, 583, 616, 716, 742, 784, 848, 1078, 1166, 1232, 1253, 1432, 1484, 1969, 2156, 2332, 2506, 2597, 2864, 2968, 3938, 4081, 4312, 4664, 5012, 5194, 5936, 7876, 8162, 8624, 8771, 9328, 9487, 10024, 10388, 13783, 15752, 16324, 17542, 18974, 20048, 20776, 27566, 28567, 31504, 32648, 35084, 37948, 41552, 55132, 57134, 65296, 66409, 70168, 75896, 96481, 104357, 110264, 114268, 132818, 140336, 151792, 192962, 208714, 220528, 228536, 265636, 385924, 417428, 457072, 464863, 531272, 730499, 771848, 834856, 929726, 1062544, 1460998, 1543696, 1669712, 1859452, 2921996, 3718904, 5113493, 5843992, 7437808, 10226986, 11687984, 20453972, 40907944, 81815888]

約数ペア:

[(1, 81815888), (2, 40907944), (4, 20453972), (7, 11687984), (8, 10226986), (11, 7437808), (14, 5843992), (16, 5113493), (22, 3718904), (28, 2921996), (44, 1859452), (49, 1669712), (53, 1543696), (56, 1460998), (77, 1062544), (88, 929726), (98, 834856), (106, 771848), (112, 730499), (154, 531272), (176, 464863), (179, 457072), (196, 417428), (212, 385924), (308, 265636), (358, 228536), (371, 220528), (392, 208714), (424, 192962), (539, 151792), (583, 140336), (616, 132818), (716, 114268), (742, 110264), (784, 104357), (848, 96481), (1078, 75896), (1166, 70168), (1232, 66409), (1253, 65296), (1432, 57134), (1484, 55132), (1969, 41552), (2156, 37948), (2332, 35084), (2506, 32648), (2597, 31504), (2864, 28567), (2968, 27566), (3938, 20776), (4081, 20048), (4312, 18974), (4664, 17542), (5012, 16324), (5194, 15752), (5936, 13783), (7876, 10388), (8162, 10024), (8624, 9487), (8771, 9328)]