31780756

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 67495680

約数和(自身を除く): 35714924

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 61, 92, 122, 161, 244, 322, 427, 644, 809, 854, 1403, 1618, 1708, 2806, 3236, 5612, 5663, 9821, 11326, 18607, 19642, 22652, 37214, 39284, 49349, 74428, 98698, 130249, 197396, 260498, 345443, 520996, 690886, 1135027, 1381772, 2270054, 4540108, 7945189, 15890378, 31780756]

約数ペア:

[(1, 31780756), (2, 15890378), (4, 7945189), (7, 4540108), (14, 2270054), (23, 1381772), (28, 1135027), (46, 690886), (61, 520996), (92, 345443), (122, 260498), (161, 197396), (244, 130249), (322, 98698), (427, 74428), (644, 49349), (809, 39284), (854, 37214), (1403, 22652), (1618, 19642), (1708, 18607), (2806, 11326), (3236, 9821), (5612, 5663)]