20787104

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{467}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 44579808

約数和(自身を除く): 23792704

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 107, 208, 214, 416, 428, 467, 856, 934, 1391, 1712, 1868, 2782, 3424, 3736, 5564, 6071, 7472, 11128, 12142, 14944, 22256, 24284, 44512, 48568, 49969, 97136, 99938, 194272, 199876, 399752, 649597, 799504, 1299194, 1599008, 2598388, 5196776, 10393552, 20787104]

約数ペア:

[(1, 20787104), (2, 10393552), (4, 5196776), (8, 2598388), (13, 1599008), (16, 1299194), (26, 799504), (32, 649597), (52, 399752), (104, 199876), (107, 194272), (208, 99938), (214, 97136), (416, 49969), (428, 48568), (467, 44512), (856, 24284), (934, 22256), (1391, 14944), (1712, 12142), (1868, 11128), (2782, 7472), (3424, 6071), (3736, 5564)]