644276

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 1209600

約数和(自身を除く): 565324

約数列:

[1, 2, 4, 23, 46, 47, 92, 94, 149, 188, 298, 596, 1081, 2162, 3427, 4324, 6854, 7003, 13708, 14006, 28012, 161069, 322138, 644276]

約数ペア:

[(1, 644276), (2, 322138), (4, 161069), (23, 28012), (46, 14006), (47, 13708), (92, 7003), (94, 6854), (149, 4324), (188, 3427), (298, 2162), (596, 1081)]