27988688

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:484

約数の個数: 80

約数和(自身を含む): 68328960

約数和(自身を除く): 40340272

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 47, 52, 56, 91, 94, 104, 112, 182, 188, 208, 329, 364, 376, 409, 611, 658, 728, 752, 818, 1222, 1316, 1456, 1636, 2444, 2632, 2863, 3272, 4277, 4888, 5264, 5317, 5726, 6544, 8554, 9776, 10634, 11452, 17108, 19223, 21268, 22904, 34216, 37219, 38446, 42536, 45808, 68432, 74438, 76892, 85072, 134561, 148876, 153784, 249899, 269122, 297752, 307568, 499798, 538244, 595504, 999596, 1076488, 1749293, 1999192, 2152976, 3498586, 3998384, 6997172, 13994344, 27988688]

約数ペア:

[(1, 27988688), (2, 13994344), (4, 6997172), (7, 3998384), (8, 3498586), (13, 2152976), (14, 1999192), (16, 1749293), (26, 1076488), (28, 999596), (47, 595504), (52, 538244), (56, 499798), (91, 307568), (94, 297752), (104, 269122), (112, 249899), (182, 153784), (188, 148876), (208, 134561), (329, 85072), (364, 76892), (376, 74438), (409, 68432), (611, 45808), (658, 42536), (728, 38446), (752, 37219), (818, 34216), (1222, 22904), (1316, 21268), (1456, 19223), (1636, 17108), (2444, 11452), (2632, 10634), (2863, 9776), (3272, 8554), (4277, 6544), (4888, 5726), (5264, 5317)]