20504647576

素因数分解:

$2^3\times 7^1\times {\mathrm{643}}^1\times {\mathrm{569447}}^1$

素因数の和:570103

約数の個数: 32

約数和(自身を含む): 44006941440

約数和(自身を除く): 23502293864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 643, 1286, 2572, 4501, 5144, 9002, 18004, 36008, 569447, 1138894, 2277788, 3986129, 4555576, 7972258, 15944516, 31889032, 366154421, 732308842, 1464617684, 2563080947, 2929235368, 5126161894, 10252323788, 20504647576]

約数ペア:

[(1, 20504647576), (2, 10252323788), (4, 5126161894), (7, 2929235368), (8, 2563080947), (14, 1464617684), (28, 732308842), (56, 366154421), (643, 31889032), (1286, 15944516), (2572, 7972258), (4501, 4555576), (5144, 3986129), (9002, 2277788), (18004, 1138894), (36008, 569447)]