81385054.000000000

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{179903}}^1$

素因数の和:179978

約数の個数: 20

約数和(自身を含む): 379237632

約数和(自身を除く): 186381616

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 179903, 359806, 719612, 1439224, 2878448, 12053501, 24107002, 48214004, 96428008, 192856016]

約数ペア:

[(1, 192856016), (2, 96428008), (4, 48214004), (8, 24107002), (16, 12053501), (67, 2878448), (134, 1439224), (268, 719612), (536, 359806), (1072, 179903)]