20121016984

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{308491}}^1$

素因数の和:308791

約数の個数: 32

約数和(自身を含む): 39092106240

約数和(自身を除く): 18971089256

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 263, 526, 1052, 2104, 8153, 16306, 32612, 65224, 308491, 616982, 1233964, 2467928, 9563221, 19126442, 38252884, 76505768, 81133133, 162266266, 324532532, 649065064, 2515127123, 5030254246, 10060508492, 20121016984]

約数ペア:

[(1, 20121016984), (2, 10060508492), (4, 5030254246), (8, 2515127123), (31, 649065064), (62, 324532532), (124, 162266266), (248, 81133133), (263, 76505768), (526, 38252884), (1052, 19126442), (2104, 9563221), (8153, 2467928), (16306, 1233964), (32612, 616982), (65224, 308491)]