80921584

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{7817}}^1$

素因数の和:8472

約数の個数: 20

約数和(自身を含む): 157047984

約数和(自身を除く): 76126400

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2588, 5176, 7817, 10352, 15634, 31268, 62536, 125072, 5057599, 10115198, 20230396, 40460792, 80921584]

約数ペア:

[(1, 80921584), (2, 40460792), (4, 20230396), (8, 10115198), (16, 5057599), (647, 125072), (1294, 62536), (2588, 31268), (5176, 15634), (7817, 10352)]