291123856

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{1021}}^1$

素因数の和:1351

約数の個数: 40

約数和(自身を含む): 574838208

約数和(自身を除く): 283714352

約数列:

[1, 2, 4, 8, 16, 71, 142, 251, 284, 502, 568, 1004, 1021, 1136, 2008, 2042, 4016, 4084, 8168, 16336, 17821, 35642, 71284, 72491, 142568, 144982, 256271, 285136, 289964, 512542, 579928, 1025084, 1159856, 2050168, 4100336, 18195241, 36390482, 72780964, 145561928, 291123856]

約数ペア:

[(1, 291123856), (2, 145561928), (4, 72780964), (8, 36390482), (16, 18195241), (71, 4100336), (142, 2050168), (251, 1159856), (284, 1025084), (502, 579928), (568, 512542), (1004, 289964), (1021, 285136), (1136, 256271), (2008, 144982), (2042, 142568), (4016, 72491), (4084, 71284), (8168, 35642), (16336, 17821)]