28348216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 60328800

約数和(自身を除く): 31980584

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 53, 74, 104, 106, 139, 148, 212, 278, 296, 424, 481, 556, 689, 962, 1112, 1378, 1807, 1924, 1961, 2756, 3614, 3848, 3922, 5143, 5512, 7228, 7367, 7844, 10286, 14456, 14734, 15688, 20572, 25493, 29468, 41144, 50986, 58936, 66859, 95771, 101972, 133718, 191542, 203944, 267436, 272579, 383084, 534872, 545158, 766168, 1090316, 2180632, 3543527, 7087054, 14174108, 28348216]

約数ペア:

[(1, 28348216), (2, 14174108), (4, 7087054), (8, 3543527), (13, 2180632), (26, 1090316), (37, 766168), (52, 545158), (53, 534872), (74, 383084), (104, 272579), (106, 267436), (139, 203944), (148, 191542), (212, 133718), (278, 101972), (296, 95771), (424, 66859), (481, 58936), (556, 50986), (689, 41144), (962, 29468), (1112, 25493), (1378, 20572), (1807, 15688), (1924, 14734), (1961, 14456), (2756, 10286), (3614, 7844), (3848, 7367), (3922, 7228), (5143, 5512)]