670672

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:426

約数の個数: 20

約数和(自身を含む): 1312416

約数和(自身を除く): 641744

約数列:

[1, 2, 4, 8, 16, 167, 251, 334, 502, 668, 1004, 1336, 2008, 2672, 4016, 41917, 83834, 167668, 335336, 670672]

約数ペア:

[(1, 670672), (2, 335336), (4, 167668), (8, 83834), (16, 41917), (167, 4016), (251, 2672), (334, 2008), (502, 1336), (668, 1004)]