28721728

素因数分解:

$2^6\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1051}}^1$

素因数の和:1131

約数の個数: 56

約数和(自身を含む): 66267584

約数和(自身を除く): 37545856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 224, 244, 427, 448, 488, 854, 976, 1051, 1708, 1952, 2102, 3416, 3904, 4204, 6832, 7357, 8408, 13664, 14714, 16816, 27328, 29428, 33632, 58856, 64111, 67264, 117712, 128222, 235424, 256444, 448777, 470848, 512888, 897554, 1025776, 1795108, 2051552, 3590216, 4103104, 7180432, 14360864, 28721728]

約数ペア:

[(1, 28721728), (2, 14360864), (4, 7180432), (7, 4103104), (8, 3590216), (14, 2051552), (16, 1795108), (28, 1025776), (32, 897554), (56, 512888), (61, 470848), (64, 448777), (112, 256444), (122, 235424), (224, 128222), (244, 117712), (427, 67264), (448, 64111), (488, 58856), (854, 33632), (976, 29428), (1051, 27328), (1708, 16816), (1952, 14714), (2102, 13664), (3416, 8408), (3904, 7357), (4204, 6832)]