81497648

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{221461}}^1$

素因数の和:221492

約数の個数: 20

約数和(自身を含む): 164767728

約数和(自身を除く): 83270080

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 221461, 442922, 885844, 1771688, 3543376, 5093603, 10187206, 20374412, 40748824, 81497648]

約数ペア:

[(1, 81497648), (2, 40748824), (4, 20374412), (8, 10187206), (16, 5093603), (23, 3543376), (46, 1771688), (92, 885844), (184, 442922), (368, 221461)]