208048905

素因数分解:

$3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 391970304

約数和(自身を除く): 183921399

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 73, 81, 93, 135, 155, 219, 227, 279, 365, 405, 465, 657, 681, 837, 1095, 1135, 1395, 1971, 2043, 2263, 2511, 3285, 3405, 4185, 5913, 6129, 6789, 7037, 9855, 10215, 11315, 12555, 16571, 18387, 20367, 21111, 29565, 30645, 33945, 35185, 49713, 61101, 63333, 82855, 91935, 101835, 105555, 149139, 183303, 189999, 248565, 305505, 316665, 447417, 513701, 569997, 745695, 916515, 949995, 1342251, 1541103, 2237085, 2568505, 2849985, 4623309, 6711255, 7705515, 13869927, 23116545, 41609781, 69349635, 208048905]

約数ペア:

[(1, 208048905), (3, 69349635), (5, 41609781), (9, 23116545), (15, 13869927), (27, 7705515), (31, 6711255), (45, 4623309), (73, 2849985), (81, 2568505), (93, 2237085), (135, 1541103), (155, 1342251), (219, 949995), (227, 916515), (279, 745695), (365, 569997), (405, 513701), (465, 447417), (657, 316665), (681, 305505), (837, 248565), (1095, 189999), (1135, 183303), (1395, 149139), (1971, 105555), (2043, 101835), (2263, 91935), (2511, 82855), (3285, 63333), (3405, 61101), (4185, 49713), (5913, 35185), (6129, 33945), (6789, 30645), (7037, 29565), (9855, 21111), (10215, 20367), (11315, 18387), (12555, 16571)]