28157508

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 76134240

約数和(自身を除く): 47976732

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 139, 153, 204, 278, 306, 331, 417, 556, 612, 662, 834, 993, 1251, 1324, 1668, 1986, 2363, 2502, 2979, 3972, 4726, 5004, 5627, 5958, 7089, 9452, 11254, 11916, 14178, 16881, 21267, 22508, 28356, 33762, 42534, 46009, 50643, 67524, 85068, 92018, 101286, 138027, 184036, 202572, 276054, 414081, 552108, 782153, 828162, 1564306, 1656324, 2346459, 3128612, 4692918, 7039377, 9385836, 14078754, 28157508]

約数ペア:

[(1, 28157508), (2, 14078754), (3, 9385836), (4, 7039377), (6, 4692918), (9, 3128612), (12, 2346459), (17, 1656324), (18, 1564306), (34, 828162), (36, 782153), (51, 552108), (68, 414081), (102, 276054), (139, 202572), (153, 184036), (204, 138027), (278, 101286), (306, 92018), (331, 85068), (417, 67524), (556, 50643), (612, 46009), (662, 42534), (834, 33762), (993, 28356), (1251, 22508), (1324, 21267), (1668, 16881), (1986, 14178), (2363, 11916), (2502, 11254), (2979, 9452), (3972, 7089), (4726, 5958), (5004, 5627)]