20464388

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{739}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 43760640

約数和(自身を除く): 23296252

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 86, 92, 161, 172, 301, 322, 602, 644, 739, 989, 1204, 1478, 1978, 2956, 3956, 5173, 6923, 10346, 13846, 16997, 20692, 27692, 31777, 33994, 63554, 67988, 118979, 127108, 222439, 237958, 444878, 475916, 730871, 889756, 1461742, 2923484, 5116097, 10232194, 20464388]

約数ペア:

[(1, 20464388), (2, 10232194), (4, 5116097), (7, 2923484), (14, 1461742), (23, 889756), (28, 730871), (43, 475916), (46, 444878), (86, 237958), (92, 222439), (161, 127108), (172, 118979), (301, 67988), (322, 63554), (602, 33994), (644, 31777), (739, 27692), (989, 20692), (1204, 16997), (1478, 13846), (1978, 10346), (2956, 6923), (3956, 5173)]