80819956

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^2\times {\mathrm{643}}^1$

素因数の和:788

約数の個数: 36

約数和(自身を含む): 164343648

約数和(自身を除く): 83523692

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 643, 938, 1286, 1876, 2572, 4489, 4501, 8978, 9002, 17956, 18004, 31423, 43081, 62846, 86162, 125692, 172324, 301567, 603134, 1206268, 2886427, 5772854, 11545708, 20204989, 40409978, 80819956]

約数ペア:

[(1, 80819956), (2, 40409978), (4, 20204989), (7, 11545708), (14, 5772854), (28, 2886427), (67, 1206268), (134, 603134), (268, 301567), (469, 172324), (643, 125692), (938, 86162), (1286, 62846), (1876, 43081), (2572, 31423), (4489, 18004), (4501, 17956), (8978, 9002)]