20123366312

素因数分解:

$2^3\times 7^1\times {\mathrm{1571}}^1\times {\mathrm{228737}}^1$

素因数の和:230321

約数の個数: 32

約数和(自身を含む): 43149136320

約数和(自身を除く): 23025770008

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1571, 3142, 6284, 10997, 12568, 21994, 43988, 87976, 228737, 457474, 914948, 1601159, 1829896, 3202318, 6404636, 12809272, 359345827, 718691654, 1437383308, 2515420789, 2874766616, 5030841578, 10061683156, 20123366312]

約数ペア:

[(1, 20123366312), (2, 10061683156), (4, 5030841578), (7, 2874766616), (8, 2515420789), (14, 1437383308), (28, 718691654), (56, 359345827), (1571, 12809272), (3142, 6404636), (6284, 3202318), (10997, 1829896), (12568, 1601159), (21994, 914948), (43988, 457474), (87976, 228737)]